<P> The first resignation from the Senate was that of William Paterson of New Jersey on November 13, 1790, who resigned in order to accept the office of Governor of New Jersey . His resignation was only the third time a person ceased to hold a seat in the Senate, which had first convened during the preceding year, 1789 . The earlier ones resulted from the death of Senator William Grayson of Virginia, and the expiration of the term of the temporary senator John Walker of Virginia, who was appointed by the Governor of Virginia to hold that office until a successor could be elected in November . </P> <P> Before 1796, eight senators resigned . Nine senators resigned during that year--a record high number that stands to this day . Most resignations have been motivated either by declining health or a decision to accept another office . Sixteen persons have resigned from the Senate twice and two have resigned three times . </P> <Table> <Tr> <Th> Name </Th> <Th> State </Th> <Th> Date of resignation </Th> <Th> Notes </Th> </Tr> <Tr> <Td> William Paterson </Td> <Td> New Jersey </Td> <Td> November 13, 1790 </Td> <Td> Resigned to become Governor of New Jersey </Td> </Tr> <Tr> <Td> Samuel Johnson </Td> <Td> Connecticut </Td> <Td> March 3, 1791 </Td> <Td> </Td> </Tr> <Tr> <Td> Richard Lee </Td> <Td> Virginia </Td> <Td> October 8, 1792 </Td> <Td> </Td> </Tr> <Tr> <Td> Charles Carroll </Td> <Td> Maryland </Td> <Td> November 30, 1792 </Td> <Td> </Td> </Tr> <Tr> <Td> George Read </Td> <Td> Delaware </Td> <Td> September 18, 1793 </Td> <Td> </Td> </Tr> <Tr> <Td> James Monroe </Td> <Td> Virginia </Td> <Td> March 27, 1794 </Td> <Td> </Td> </Tr> <Tr> <Td> John Taylor of Caroline </Td> <Td> Virginia </Td> <Td> May 11, 1794 </Td> <Td> </Td> </Tr> <Tr> <Td> James Jackson </Td> <Td> Georgia </Td> <Td> November 16, 1795 </Td> <Td> </Td> </Tr> <Tr> <Td> Oliver Ellsworth </Td> <Td> Connecticut </Td> <Td> March 8, 1796 </Td> <Td> </Td> </Tr> <Tr> <Td> Rufus King </Td> <Td> New York </Td> <Td> May 23, 1796 </Td> <Td> </Td> </Tr> <Tr> <Td> Caleb Strong </Td> <Td> Massachusetts </Td> <Td> June 1, 1796 </Td> <Td> </Td> </Tr> <Tr> <Td> George Cabot </Td> <Td> Massachusetts </Td> <Td> June 9, 1796 </Td> <Td> </Td> </Tr> <Tr> <Td> Jonathan Trumbull, Jr . </Td> <Td> Connecticut </Td> <Td> June 10, 1796 </Td> <Td> </Td> </Tr> <Tr> <Td> Moses Robinson </Td> <Td> Vermont </Td> <Td> October 15, 1796 </Td> <Td> </Td> </Tr> <Tr> <Td> Richard Potts </Td> <Td> Maryland </Td> <Td> October 24, 1796 </Td> <Td> </Td> </Tr> <Tr> <Td> Pierce Butler </Td> <Td> South Carolina </Td> <Td> October 25, 1796 </Td> <Td> </Td> </Tr> <Tr> <Td> Frederick Frelinghuysen </Td> <Td> New Jersey </Td> <Td> November 12, 1796 </Td> <Td> </Td> </Tr> <Tr> <Td> William Cocke </Td> <Td> Tennessee </Td> <Td> September 26, 1797 </Td> <Td> </Td> </Tr> <Tr> <Td> William Bradford </Td> <Td> Rhode Island </Td> <Td> October??, 1797 </Td> <Td> </Td> </Tr> <Tr> <Td> Isaac Tichenor </Td> <Td> Vermont </Td> <Td> October 17, 1797 </Td> <Td> Resigned to become Governor of Vermont </Td> </Tr> <Tr> <Td> John Henry </Td> <Td> Maryland </Td> <Td> December 10, 1797 </Td> <Td> </Td> </Tr> <Tr> <Td> Philip Schuyler </Td> <Td> New York </Td> <Td> January 3, 1798 </Td> <Td> </Td> </Tr> <Tr> <Td> John Vining </Td> <Td> Delaware </Td> <Td> January 19, 1798 </Td> <Td> </Td> </Tr> <Tr> <Td> Andrew Jackson </Td> <Td> Tennessee </Td> <Td> April 1, 1798 </Td> <Td> </Td> </Tr> <Tr> <Td> John Sloss Hobart </Td> <Td> New York </Td> <Td> April 16, 1798 </Td> <Td> </Td> </Tr> <Tr> <Td> John Hunter </Td> <Td> South Carolina </Td> <Td> November 26, 1798 </Td> <Td> </Td> </Tr> <Tr> <Td> John Rutherfurd </Td> <Td> New Jersey </Td> <Td> December 5, 1798 </Td> <Td> </Td> </Tr> <Tr> <Td> Joseph Anderson </Td> <Td> Tennessee </Td> <Td> March 3, 1799 </Td> <Td> </Td> </Tr> <Tr> <Td> Samuel Dexter </Td> <Td> Massachusetts </Td> <Td> May 30, 1800 </Td> <Td> Resigned to take office as United States Secretary of War </Td> </Tr> <Tr> <Td> John Laurance </Td> <Td> New York </Td> <Td> August 1, 1800 </Td> <Td> </Td> </Tr> <Tr> <Td> Benjamin Goodhue </Td> <Td> Massachusetts </Td> <Td> November 8, 1800 </Td> <Td> </Td> </Tr> <Tr> <Td> James Lloyd </Td> <Td> Maryland </Td> <Td> December 1, 1800 </Td> <Td> </Td> </Tr> <Tr> <Td> James Schureman </Td> <Td> New Jersey </Td> <Td> February 16, 1801 </Td> <Td> </Td> </Tr> <Tr> <Td> Henry Latimer </Td> <Td> Delaware </Td> <Td> February 28, 1801 </Td> <Td> </Td> </Tr> <Tr> <Td> Ray Greene </Td> <Td> Rhode Island </Td> <Td> March 5, 1801 </Td> <Td> </Td> </Tr> <Tr> <Td> Charles Pinckney </Td> <Td> South Carolina </Td> <Td> June 6, 1801 </Td> <Td> </Td> </Tr> <Tr> <Td> Samuel Livermore </Td> <Td> New Hampshire </Td> <Td> June 12, 1801 </Td> <Td> </Td> </Tr> <Tr> <Td> Elijah Paine </Td> <Td> Vermont </Td> <Td> September 1, 1801 </Td> <Td> </Td> </Tr> <Tr> <Td> John Armstrong, Jr . </Td> <Td> New York </Td> <Td> February 5, 1802 </Td> <Td> </Td> </Tr> <Tr> <Td> James Sheafe </Td> <Td> New Hampshire </Td> <Td> June 14, 1802 </Td> <Td> </Td> </Tr> <Tr> <Td> Dwight Foster </Td> <Td> Massachusetts </Td> <Td> March 2, 1803 </Td> <Td> </Td> </Tr> <Tr> <Td> DeWitt Clinton </Td> <Td> New York </Td> <Td> November 4, 1803 </Td> <Td> </Td> </Tr> <Tr> <Td> Theodorus Bailey </Td> <Td> New York </Td> <Td> January 16, 1804 </Td> <Td> </Td> </Tr> <Tr> <Td> John Armstrong, Jr . </Td> <Td> New York </Td> <Td> February 23, 1804 </Td> <Td> </Td> </Tr> <Tr> <Td> Abraham Venable </Td> <Td> Virginia </Td> <Td> June 7, 1804 </Td> <Td> </Td> </Tr> <Tr> <Td> John Armstrong, Jr . </Td> <Td> New York </Td> <Td> June 30, 1804 </Td> <Td> </Td> </Tr> <Tr> <Td> William Wells </Td> <Td> Delaware </Td> <Td> November 6, 1804 </Td> <Td> </Td> </Tr> <Tr> <Td> William Giles </Td> <Td> Virginia </Td> <Td> December 3, 1804 </Td> <Td> </Td> </Tr> <Tr> <Td> Andrew Moore </Td> <Td> Virginia </Td> <Td> December 3, 1804 </Td> <Td> </Td> </Tr> <Tr> <Td> John Breckinridge </Td> <Td> Kentucky </Td> <Td> August 7, 1805 </Td> <Td> </Td> </Tr> <Tr> <Td> Robert Wright </Td> <Td> Maryland </Td> <Td> November 12, 1806 </Td> <Td> </Td> </Tr> <Tr> <Td> John Adair </Td> <Td> Kentucky </Td> <Td> November 18, 1806 </Td> <Td> </Td> </Tr> <Tr> <Td> David Stone </Td> <Td> North Carolina </Td> <Td> February 17, 1807 </Td> <Td> </Td> </Tr> <Tr> <Td> James Fenner </Td> <Td> Rhode Island </Td> <Td> September??, 1807 </Td> <Td> </Td> </Tr> <Tr> <Td> Israel Smith </Td> <Td> Vermont </Td> <Td> October 1, 1807 </Td> <Td> </Td> </Tr> <Tr> <Td> John Smith </Td> <Td> Ohio </Td> <Td> April 25, 1808 </Td> <Td> Resigned after being indicted but not expelled in a 19--10 vote </Td> </Tr> <Tr> <Td> Quincy Adams </Td> <Td> Massachusetts </Td> <Td> June 8, 1808 </Td> <Td> </Td> </Tr> <Tr> <Td> Samuel Maclay </Td> <Td> Pennsylvania </Td> <Td> January 4, 1809 </Td> <Td> </Td> </Tr> <Tr> <Td> Aaron Kitchell </Td> <Td> New Jersey </Td> <Td> March 3, 1809 </Td> <Td> </Td> </Tr> <Tr> <Td> Daniel Smith </Td> <Td> Tennessee </Td> <Td> March 31, 1809 </Td> <Td> </Td> </Tr> <Tr> <Td> John Milledge </Td> <Td> Georgia </Td> <Td> November 14, 1809 </Td> <Td> </Td> </Tr> <Tr> <Td> Buckner Thruston </Td> <Td> Kentucky </Td> <Td> December 18, 1809 </Td> <Td> </Td> </Tr> <Tr> <Td> Nahum Parker </Td> <Td> New Hampshire </Td> <Td> June 1, 1810 </Td> <Td> </Td> </Tr> <Tr> <Td> James Hillhouse </Td> <Td> Connecticut </Td> <Td> June 10, 1810 </Td> <Td> </Td> </Tr> <Tr> <Td> Return Meigs, Jr . </Td> <Td> Ohio </Td> <Td> December 8, 1810 </Td> <Td> </Td> </Tr> <Tr> <Td> Thomas Sumter </Td> <Td> South Carolina </Td> <Td> December 16, 1810 </Td> <Td> </Td> </Tr> <Tr> <Td> Jenkin Whiteside </Td> <Td> Tennessee </Td> <Td> October 8, 1811 </Td> <Td> </Td> </Tr> <Tr> <Td> Christopher Champlin </Td> <Td> Rhode Island </Td> <Td> October 12, 1811 </Td> <Td> </Td> </Tr> <Tr> <Td> Jean Noel Destréan </Td> <Td> Louisiana </Td> <Td> October 1, 1812 </Td> <Td> </Td> </Tr> <Tr> <Td> James Bayard </Td> <Td> Delaware </Td> <Td> March 3, 1813 </Td> <Td> </Td> </Tr> <Tr> <Td> Dudley Chase </Td> <Td> Vermont </Td> <Td> March 3, 1813 </Td> <Td> </Td> </Tr> <Tr> <Td> William Crawford </Td> <Td> Georgia </Td> <Td> March 23, 1813 </Td> <Td> </Td> </Tr> <Tr> <Td> James Lloyd </Td> <Td> Massachusetts </Td> <Td> May 1, 1813 </Td> <Td> </Td> </Tr> <Tr> <Td> Chauncey Goodrich </Td> <Td> Connecticut </Td> <Td> May 13, 1813 </Td> <Td> </Td> </Tr> <Tr> <Td> George Campbell </Td> <Td> Tennessee </Td> <Td> February 11, 1814 </Td> <Td> </Td> </Tr> <Tr> <Td> Michael Leib </Td> <Td> Pennsylvania </Td> <Td> February 14, 1814 </Td> <Td> </Td> </Tr> <Tr> <Td> George Bibb </Td> <Td> Kentucky </Td> <Td> August 23, 1814 </Td> <Td> </Td> </Tr> <Tr> <Td> Thomas Worthington </Td> <Td> Ohio </Td> <Td> December 1, 1814 </Td> <Td> </Td> </Tr> <Tr> <Td> Jesse Bledsoe </Td> <Td> Kentucky </Td> <Td> December 24, 1814 </Td> <Td> </Td> </Tr> <Tr> <Td> David Stone </Td> <Td> North Carolina </Td> <Td> December 24, 1814 </Td> <Td> </Td> </Tr> <Tr> <Td> William Giles </Td> <Td> Virginia </Td> <Td> March 3, 1815 </Td> <Td> </Td> </Tr> <Tr> <Td> Francis Locke </Td> <Td> North Carolina </Td> <Td> December 5, 1815 </Td> <Td> </Td> </Tr> <Tr> <Td> William Barry </Td> <Td> Kentucky </Td> <Td> May 1, 1816 </Td> <Td> </Td> </Tr> <Tr> <Td> Christopher Gore </Td> <Td> Massachusetts </Td> <Td> May 30, 1816 </Td> <Td> </Td> </Tr> <Tr> <Td> John Taylor </Td> <Td> South Carolina </Td> <Td> November??, 1816 </Td> <Td> </Td> </Tr> <Tr> <Td> Wyatt Bibb </Td> <Td> Georgia </Td> <Td> November 9, 1816 </Td> <Td> </Td> </Tr> <Tr> <Td> James Turner </Td> <Td> North Carolina </Td> <Td> November 21, 1816 </Td> <Td> </Td> </Tr> <Tr> <Td> Goodloe Harper </Td> <Td> Maryland </Td> <Td> December 6, 1816 </Td> <Td> </Td> </Tr> <Tr> <Td> Jeremiah Mason </Td> <Td> New Hampshire </Td> <Td> June 16, 1817 </Td> <Td> </Td> </Tr> <Tr> <Td> James Fisk </Td> <Td> Vermont </Td> <Td> January 8, 1818 </Td> <Td> </Td> </Tr> <Tr> <Td> George Campbell </Td> <Td> Tennessee </Td> <Td> April 20, 1818 </Td> <Td> </Td> </Tr> <Tr> <Td> Eli Ashmun </Td> <Td> Massachusetts </Td> <Td> May 10, 1818 </Td> <Td> </Td> </Tr> <Tr> <Td> George Troup </Td> <Td> Georgia </Td> <Td> September 23, 1818 </Td> <Td> </Td> </Tr> <Tr> <Td> John Forsyth </Td> <Td> Georgia </Td> <Td> February 17, 1819 </Td> <Td> </Td> </Tr> <Tr> <Td> John Crittenden </Td> <Td> Kentucky </Td> <Td> March 3, 1819 </Td> <Td> </Td> </Tr> <Tr> <Td> John Eppes </Td> <Td> Virginia </Td> <Td> December 4, 1819 </Td> <Td> </Td> </Tr> <Tr> <Td> Prentis Mellen </Td> <Td> Massachusetts </Td> <Td> May 15, 1820 </Td> <Td> </Td> </Tr> <Tr> <Td> Walter Leake </Td> <Td> Mississippi </Td> <Td> May 15, 1820 </Td> <Td> </Td> </Tr> <Tr> <Td> William Logan </Td> <Td> Kentucky </Td> <Td> May 28, 1820 </Td> <Td> </Td> </Tr> <Tr> <Td> James Wilson </Td> <Td> New Jersey </Td> <Td> January 8, 1821 </Td> <Td> </Td> </Tr> <Tr> <Td> Freeman Walker </Td> <Td> Georgia </Td> <Td> August 6, 1821 </Td> <Td> </Td> </Tr> <Tr> <Td> Gray Otis </Td> <Td> Massachusetts </Td> <Td> May 30, 1822 </Td> <Td> </Td> </Tr> <Tr> <Td> Williams Walker </Td> <Td> Alabama </Td> <Td> December 12, 1822 </Td> <Td> </Td> </Tr> <Tr> <Td> James Pleasants </Td> <Td> Virginia </Td> <Td> December 15, 1822 </Td> <Td> </Td> </Tr> <Tr> <Td> Caesar Rodney </Td> <Td> Delaware </Td> <Td> January 29, 1823 </Td> <Td> </Td> </Tr> <Tr> <Td> Samuel Southard </Td> <Td> New Jersey </Td> <Td> March 3, 1823 </Td> <Td> </Td> </Tr> <Tr> <Td> James Brown </Td> <Td> Louisiana </Td> <Td> December 10, 1823 </Td> <Td> </Td> </Tr> <Tr> <Td> Ninian Edwards </Td> <Td> Illinois </Td> <Td> March 3, 1824 </Td> <Td> </Td> </Tr> <Tr> <Td> Henry Johnson </Td> <Td> Louisiana </Td> <Td> May 27, 1824 </Td> <Td> </Td> </Tr> <Tr> <Td> James Barbour </Td> <Td> Virginia </Td> <Td> March 7, 1825 </Td> <Td> </Td> </Tr> <Tr> <Td> David Holmes </Td> <Td> Mississippi </Td> <Td> September 25, 1825 </Td> <Td> </Td> </Tr> <Tr> <Td> Andrew Jackson </Td> <Td> Tennessee </Td> <Td> October 14, 1825 </Td> <Td> </Td> </Tr> <Tr> <Td> James DeWolf </Td> <Td> Rhode Island </Td> <Td> October 31, 1825 </Td> <Td> </Td> </Tr> <Tr> <Td> Edward Lloyd </Td> <Td> Maryland </Td> <Td> January 14, 1826 </Td> <Td> </Td> </Tr> <Tr> <Td> James Lloyd </Td> <Td> Massachusetts </Td> <Td> May 23, 1826 </Td> <Td> </Td> </Tr> <Tr> <Td> Henry Harrison </Td> <Td> Ohio </Td> <Td> May 20, 1828 </Td> <Td> </Td> </Tr> <Tr> <Td> Albion Parris </Td> <Td> Maine </Td> <Td> August 26, 1828 </Td> <Td> </Td> </Tr> <Tr> <Td> Thomas Cobb </Td> <Td> Georgia </Td> <Td> November 7, 1828 </Td> <Td> </Td> </Tr> <Tr> <Td> Nathaniel Macon </Td> <Td> North Carolina </Td> <Td> December 14, 1828 </Td> <Td> </Td> </Tr> <Tr> <Td> Ephraim Bateman </Td> <Td> New Jersey </Td> <Td> January 12, 1829 </Td> <Td> </Td> </Tr> <Tr> <Td> Mahlon Dickerson </Td> <Td> New Jersey </Td> <Td> January 30, 1829 </Td> <Td> </Td> </Tr> <Tr> <Td> John Berrien </Td> <Td> Georgia </Td> <Td> March 9, 1829 </Td> <Td> </Td> </Tr> <Tr> <Td> John Branch </Td> <Td> North Carolina </Td> <Td> March 9, 1829 </Td> <Td> </Td> </Tr> <Tr> <Td> John Eaton </Td> <Td> Tennessee </Td> <Td> March 9, 1829 </Td> <Td> </Td> </Tr> <Tr> <Td> Louis McLane </Td> <Td> Delaware </Td> <Td> April 16, 1829 </Td> <Td> </Td> </Tr> <Tr> <Td> Edward Livingston </Td> <Td> Louisiana </Td> <Td> May 24, 1831 </Td> <Td> </Td> </Tr> <Tr> <Td> Issac Barnard </Td> <Td> Pennsylvania </Td> <Td> December 6, 1831 </Td> <Td> </Td> </Tr> <Tr> <Td> Powhatan Ellis </Td> <Td> Mississippi </Td> <Td> July 16, 1832 </Td> <Td> </Td> </Tr> <Tr> <Td> Littleton Tazewell </Td> <Td> Virginia </Td> <Td> July 16, 1832 </Td> <Td> </Td> </Tr> <Tr> <Td> Robert Hayne </Td> <Td> South Carolina </Td> <Td> December 13, 1832 </Td> <Td> </Td> </Tr> <Tr> <Td> William Marcy </Td> <Td> New York </Td> <Td> January 1, 1833 </Td> <Td> </Td> </Tr> <Tr> <Td> George Troup </Td> <Td> Georgia </Td> <Td> November 8, 1833 </Td> <Td> </Td> </Tr> <Tr> <Td> William Rives </Td> <Td> Virginia </Td> <Td> February 22, 1834 </Td> <Td> </Td> </Tr> <Tr> <Td> John Forsyth </Td> <Td> Georgia </Td> <Td> June 27, 1834 </Td> <Td> </Td> </Tr> <Tr> <Td> Ezekiel Chambers </Td> <Td> Maryland </Td> <Td> December 20, 1834 </Td> <Td> </Td> </Tr> <Tr> <Td> Peleg Sprague </Td> <Td> Maine </Td> <Td> January 1, 1835 </Td> <Td> </Td> </Tr> <Tr> <Td> Charles Gayarré </Td> <Td> Louisiana </Td> <Td> January??, 1836 </Td> <Td> </Td> </Tr> <Tr> <Td> John Tyler </Td> <Td> Virginia </Td> <Td> February 29, 1836 </Td> <Td> </Td> </Tr> <Tr> <Td> Ether Shepley </Td> <Td> Maine </Td> <Td> March 3, 1836 </Td> <Td> </Td> </Tr> <Tr> <Td> Willie Mangum </Td> <Td> North Carolina </Td> <Td> March 19, 1836 </Td> <Td> </Td> </Tr> <Tr> <Td> Isaac Hill </Td> <Td> New Hampshire </Td> <Td> May 30, 1836 </Td> <Td> </Td> </Tr> <Tr> <Td> Arnold Naudain </Td> <Td> Delaware </Td> <Td> June 16, 1836 </Td> <Td> </Td> </Tr> <Tr> <Td> Benjamin Leigh </Td> <Td> Virginia </Td> <Td> July 4, 1836 </Td> <Td> </Td> </Tr> <Tr> <Td> John Clayton </Td> <Td> Delaware </Td> <Td> December 29, 1836 </Td> <Td> </Td> </Tr> <Tr> <Td> Alexander Porter </Td> <Td> Louisiana </Td> <Td> January 5, 1837 </Td> <Td> </Td> </Tr> <Tr> <Td> Richard Parker </Td> <Td> Virginia </Td> <Td> March 13, 1837 </Td> <Td> </Td> </Tr> <Tr> <Td> John McKinley </Td> <Td> Alabama </Td> <Td> April 22, 1837 </Td> <Td> </Td> </Tr> <Tr> <Td> Pendleton King </Td> <Td> Georgia </Td> <Td> November 1, 1837 </Td> <Td> </Td> </Tr> <Tr> <Td> John Black </Td> <Td> Mississippi </Td> <Td> January 22, 1838 </Td> <Td> </Td> </Tr> <Tr> <Td> Felix Grundy </Td> <Td> Tennessee </Td> <Td> July 4, 1838 </Td> <Td> </Td> </Tr> <Tr> <Td> James Trotter </Td> <Td> Mississippi </Td> <Td> July 10, 1838 </Td> <Td> </Td> </Tr> <Tr> <Td> Ephraim Foster </Td> <Td> Tennessee </Td> <Td> March 3, 1839 </Td> <Td> </Td> </Tr> <Tr> <Td> Richard Bayard </Td> <Td> Delaware </Td> <Td> September 19, 1839 </Td> <Td> </Td> </Tr> <Tr> <Td> Lawson White </Td> <Td> Tennessee </Td> <Td> January 13, 1840 </Td> <Td> </Td> </Tr> <Tr> <Td> Robert Strange </Td> <Td> North Carolina </Td> <Td> November 16, 1840 </Td> <Td> </Td> </Tr> <Tr> <Td> Bedford Brown </Td> <Td> North Carolina </Td> <Td> November 16, 1840 </Td> <Td> </Td> </Tr> <Tr> <Td> John Davis </Td> <Td> Massachusetts </Td> <Td> January 5, 1841 </Td> <Td> </Td> </Tr> <Tr> <Td> Daniel Webster </Td> <Td> Massachusetts </Td> <Td> February 22, 1841 </Td> <Td> Resigned to become United States Secretary of State </Td> </Tr> <Tr> <Td> Comer Clay </Td> <Td> Alabama </Td> <Td> November 15, 1841 </Td> <Td> </Td> </Tr> <Tr> <Td> Franklin Pierce </Td> <Td> New Hampshire </Td> <Td> February 28, 1842 </Td> <Td> </Td> </Tr> <Tr> <Td> Alexander Mouton </Td> <Td> Louisiana </Td> <Td> March 1, 1842 </Td> <Td> </Td> </Tr> <Tr> <Td> Henry Clay </Td> <Td> Kentucky </Td> <Td> March 31, 1842 </Td> <Td> </Td> </Tr> <Tr> <Td> Samuel Prentiss </Td> <Td> Vermont </Td> <Td> April 11, 1842 </Td> <Td> </Td> </Tr> <Tr> <Td> Samuel Southard </Td> <Td> New Jersey </Td> <Td> June 26, 1842 </Td> <Td> </Td> </Tr> <Tr> <Td> Reuel Williams </Td> <Td> Maine </Td> <Td> February 15, 1843 </Td> <Td> </Td> </Tr> <Tr> <Td> John Calhoun </Td> <Td> South Carolina </Td> <Td> March 3, 1843 </Td> <Td> </Td> </Tr> <Tr> <Td> William Sprague </Td> <Td> Rhode Island </Td> <Td> January 17, 1844 </Td> <Td> </Td> </Tr> <Tr> <Td> William King </Td> <Td> Alabama </Td> <Td> April 15, 1844 </Td> <Td> </Td> </Tr> <Tr> <Td> Nathaniel Tallmadge </Td> <Td> New York </Td> <Td> June 17, 1844 </Td> <Td> </Td> </Tr> <Tr> <Td> Silas Wright, Jr . </Td> <Td> New York </Td> <Td> November 26, 1844 </Td> <Td> </Td> </Tr> <Tr> <Td> John Berrien </Td> <Td> Georgia </Td> <Td> March 1, 1845 </Td> <Td> </Td> </Tr> <Tr> <Td> Elliot Huger </Td> <Td> South Carolina </Td> <Td> March 3, 1845 </Td> <Td> </Td> </Tr> <Tr> <Td> Levi Woodbury </Td> <Td> New Hampshire </Td> <Td> September 20, 1845 </Td> <Td> </Td> </Tr> <Tr> <Td> William Haywood, Jr . </Td> <Td> North Carolina </Td> <Td> July 25, 1846 </Td> <Td> </Td> </Tr> <Tr> <Td> Walter Colquitt </Td> <Td> Georgia </Td> <Td> February 4, 1848 </Td> <Td> </Td> </Tr> <Tr> <Td> Ambrose Sevier </Td> <Td> Arkansas </Td> <Td> March 15, 1848 </Td> <Td> </Td> </Tr> <Tr> <Td> Lewis Cass </Td> <Td> Michigan </Td> <Td> May 29, 1848 </Td> <Td> </Td> </Tr> <Tr> <Td> John Crittenden </Td> <Td> Kentucky </Td> <Td> June 12, 1848 </Td> <Td> </Td> </Tr> <Tr> <Td> Arthur Bagby </Td> <Td> Alabama </Td> <Td> June 16, 1848 </Td> <Td> </Td> </Tr> <Tr> <Td> John Clayton </Td> <Td> Delaware </Td> <Td> February 2, 1849 </Td> <Td> </Td> </Tr> <Tr> <Td> Reverdy Johnson </Td> <Td> Maryland </Td> <Td> March 7, 1849 </Td> <Td> </Td> </Tr> <Tr> <Td> Daniel Webster </Td> <Td> Massachusetts </Td> <Td> July 22, 1850 </Td> <Td> Resigned again to again take office as United States Secretary of State </Td> </Tr> <Tr> <Td> Jefferson Davis </Td> <Td> Mississippi </Td> <Td> September 23, 1851 </Td> <Td> Resigned to run for Governor of Mississippi </Td> </Tr> <Tr> <Td> Robert Rhett </Td> <Td> South Carolina </Td> <Td> May 7, 1852 </Td> <Td> </Td> </Tr> <Tr> <Td> John Berrien </Td> <Td> Georgia </Td> <Td> May 28, 1852 </Td> <Td> </Td> </Tr> <Tr> <Td> William King </Td> <Td> Alabama </Td> <Td> December 20, 1852 </Td> <Td> </Td> </Tr> <Tr> <Td> Robert Stockton </Td> <Td> New Jersey </Td> <Td> January 10, 1853 </Td> <Td> </Td> </Tr> <Tr> <Td> Solon Borland </Td> <Td> Arkansas </Td> <Td> April 11, 1853 </Td> <Td> </Td> </Tr> <Tr> <Td> Pierre Soulé </Td> <Td> Louisiana </Td> <Td> April 11, 1853 </Td> <Td> </Td> </Tr> <Tr> <Td> Edward Everett </Td> <Td> Massachusetts </Td> <Td> June 1, 1854 </Td> <Td> </Td> </Tr> <Tr> <Td> Augustus Dodge </Td> <Td> Iowa </Td> <Td> February 22, 1855 </Td> <Td> </Td> </Tr> <Tr> <Td> Hannibal Hamlin </Td> <Td> Maine </Td> <Td> January 7, 1857 </Td> <Td> Resigned to become Governor of Maine </Td> </Tr> <Tr> <Td> Asa Biggs </Td> <Td> North Carolina </Td> <Td> May 5, 1858 </Td> <Td> </Td> </Tr> <Tr> <Td> Hannibal Hamlin </Td> <Td> Maine </Td> <Td> January 17, 1861 </Td> <Td> Resigned to become Vice President of the United States </Td> </Tr> <Tr> <Td> Jefferson Davis </Td> <Td> Mississippi </Td> <Td> January 21, 1861 </Td> <Td> Became president of the Confederacy </Td> </Tr> <Tr> <Td> John Slidell </Td> <Td> Louisiana </Td> <Td> February 4, 1861 </Td> <Td> </Td> </Tr> <Tr> <Td> Thomas Bragg </Td> <Td> North Carolina </Td> <Td> March 6, 1861 </Td> <Td> </Td> </Tr> <Tr> <Td> Salmon Chase </Td> <Td> Ohio </Td> <Td> March 6, 1861 </Td> <Td> </Td> </Tr> <Tr> <Td> Thomas Clingman </Td> <Td> North Carolina </Td> <Td> March 11, 1861 </Td> <Td> </Td> </Tr> <Tr> <Td> Andrew Johnson </Td> <Td> Tennessee </Td> <Td> March 4, 1862 </Td> <Td> </Td> </Tr> <Tr> <Td> James Simmons </Td> <Td> Rhode Island </Td> <Td> August 15, 1862 </Td> <Td> Resigned after a case for explusion was declined </Td> </Tr> <Tr> <Td> Waitman Willey </Td> <Td> Virginia </Td> <Td> March 3, 1863 </Td> <Td> </Td> </Tr> <Tr> <Td> James Bayard, Jr . </Td> <Td> Delaware </Td> <Td> January 29, 1864 </Td> <Td> Resigned in protest of new Senate Loyalty Oath </Td> </Tr> <Tr> <Td> William Fessenden </Td> <Td> Maine </Td> <Td> July 1, 1864 </Td> <Td> </Td> </Tr> <Tr> <Td> James Harlan </Td> <Td> Iowa </Td> <Td> May 15, 1865 </Td> <Td> </Td> </Tr> <Tr> <Td> Daniel Clark </Td> <Td> New Hampshire </Td> <Td> July 27, 1866 </Td> <Td> </Td> </Tr> <Tr> <Td> James Guthrie </Td> <Td> Kentucky </Td> <Td> February 7, 1868 </Td> <Td> </Td> </Tr> <Tr> <Td> Reverdy Johnson </Td> <Td> Maryland </Td> <Td> July 10, 1868 </Td> <Td> </Td> </Tr> <Tr> <Td> James Grimes </Td> <Td> Iowa </Td> <Td> December 6, 1869 </Td> <Td> </Td> </Tr> <Tr> <Td> Charles Drake </Td> <Td> Missouri </Td> <Td> December 19, 1870 </Td> <Td> </Td> </Tr> <Tr> <Td> William Kellogg </Td> <Td> Louisiana </Td> <Td> November 1, 1872 </Td> <Td> </Td> </Tr> <Tr> <Td> Henry Wilson </Td> <Td> Massachusetts </Td> <Td> March 3, 1873 </Td> <Td> </Td> </Tr> <Tr> <Td> Alexander Caldwell </Td> <Td> Kansas </Td> <Td> March 24, 1873 </Td> <Td> </Td> </Tr> <Tr> <Td> Eugene Casserly </Td> <Td> California </Td> <Td> November 29, 1873 </Td> <Td> </Td> </Tr> <Tr> <Td> Adelbert Ames </Td> <Td> Mississippi </Td> <Td> January 4, 1874 </Td> <Td> </Td> </Tr> <Tr> <Td> Lot Morrill </Td> <Td> Maine </Td> <Td> July 7, 1876 </Td> <Td> </Td> </Tr> <Tr> <Td> John Sherman </Td> <Td> Ohio </Td> <Td> March 8, 1877 </Td> <Td> Resigned to take office as United States Secretary of the Treasury </Td> </Tr> <Tr> <Td> Isaac Christiancy </Td> <Td> Michigan </Td> <Td> February 10, 1879 </Td> <Td> </Td> </Tr> <Tr> <Td> Brown Gordon </Td> <Td> Georgia </Td> <Td> May 26, 1880 </Td> <Td> </Td> </Tr> <Tr> <Td> James G. Blaine </Td> <Td> Maine </Td> <Td> March 5, 1881 </Td> <Td> </Td> </Tr> <Tr> <Td> Samuel Kirkwood </Td> <Td> Iowa </Td> <Td> March 7, 1881 </Td> <Td> </Td> </Tr> <Tr> <Td> William Windom </Td> <Td> Minnesota </Td> <Td> March 7, 1881 </Td> <Td> </Td> </Tr> <Tr> <Td> Thomas Platt </Td> <Td> New York </Td> <Td> May 16, 1881 </Td> <Td> Resigned in support of fellow Senator Conkling's protest </Td> </Tr> <Tr> <Td> Roscoe Conkling </Td> <Td> New York </Td> <Td> May 16, 1881 </Td> <Td> Resigned in protest of the appointment of a New York City customs collector by President James A. Garfield </Td> </Tr> <Tr> <Td> Henry Teller </Td> <Td> Colorado </Td> <Td> April 17, 1882 </Td> <Td> </Td> </Tr> <Tr> <Td> Augustus Garland </Td> <Td> Arkansas </Td> <Td> March 6, 1885 </Td> <Td> </Td> </Tr> <Tr> <Td> Thomas Bayard </Td> <Td> Delaware </Td> <Td> March 6, 1885 </Td> <Td> </Td> </Tr> <Tr> <Td> Howell Jackson </Td> <Td> Tennessee </Td> <Td> April 14, 1886 </Td> <Td> </Td> </Tr> <Tr> <Td> Jonathan Chace </Td> <Td> Rhode Island </Td> <Td> April 9, 1889 </Td> <Td> </Td> </Tr> <Tr> <Td> John Henninger Reagan </Td> <Td> Texas </Td> <Td> June 10, 1891 </Td> <Td> Resigned to take office as the chairman of the Railroad Commission of Texas </Td> </Tr> <Tr> <Td> John Carlisle </Td> <Td> Kentucky </Td> <Td> February 4, 1893 </Td> <Td> </Td> </Tr> <Tr> <Td> Edward White </Td> <Td> Louisiana </Td> <Td> March 12, 1894 </Td> <Td> </Td> </Tr> <Tr> <Td> John Sherman </Td> <Td> Ohio </Td> <Td> March 4, 1897 </Td> <Td> </Td> </Tr> <Tr> <Td> William Clark </Td> <Td> Montana </Td> <Td> May 15, 1900 </Td> <Td> </Td> </Tr> <Tr> <Td> Charles Fairbanks </Td> <Td> Indiana </Td> <Td> March 3, 1905 </Td> <Td> </Td> </Tr> <Tr> <Td> Joseph Burton </Td> <Td> Kansas </Td> <Td> June 4, 1906 </Td> <Td> Resigned following corruption charges (Burton v. United States) </Td> </Tr> <Tr> <Td> Coit Spooner </Td> <Td> Wisconsin </Td> <Td> April 30, 1907 </Td> <Td> </Td> </Tr> <Tr> <Td> Philander Knox </Td> <Td> Pennsylvania </Td> <Td> March 4, 1909 </Td> <Td> </Td> </Tr> <Tr> <Td> Fountain Thompson </Td> <Td> North Dakota </Td> <Td> January 31, 1910 </Td> <Td> </Td> </Tr> <Tr> <Td> Joseph Terrell </Td> <Td> Georgia </Td> <Td> July 14, 1911 </Td> <Td> </Td> </Tr> <Tr> <Td> Weldon Bailey </Td> <Td> Texas </Td> <Td> January 3, 1913 </Td> <Td> </Td> </Tr> <Tr> <Td> Warren G. Harding </Td> <Td> Ohio </Td> <Td> January 13, 1921 </Td> <Td> First President of the United States to be elected during his term as a Senator </Td> </Tr> <Tr> <Td> John Nugent </Td> <Td> Idaho </Td> <Td> January 14, 1921 </Td> <Td> </Td> </Tr> <Tr> <Td> Albert Fall </Td> <Td> New Mexico </Td> <Td> March 4, 1921 </Td> <Td> </Td> </Tr> <Tr> <Td> Josiah Wolcott </Td> <Td> Delaware </Td> <Td> July 2, 1921 </Td> <Td> </Td> </Tr> <Tr> <Td> William Kenyon </Td> <Td> Iowa </Td> <Td> February 24, 1922 </Td> <Td> </Td> </Tr> <Tr> <Td> Truman Newberry </Td> <Td> Michigan </Td> <Td> November 18, 1922 </Td> <Td> Resigned after being condemned for violating campaign financing rules </Td> </Tr> <Tr> <Td> Frank Smith </Td> <Td> Illinois </Td> <Td> December 7, 1926 </Td> <Td> </Td> </Tr> <Tr> <Td> T. Coleman du Pont </Td> <Td> Delaware </Td> <Td> December 8, 1928 </Td> <Td> </Td> </Tr> <Tr> <Td> Charles Curtis </Td> <Td> Kansas </Td> <Td> March 3, 1929 </Td> <Td> </Td> </Tr> <Tr> <Td> Evans Edge </Td> <Td> New Jersey </Td> <Td> November 21, 1929 </Td> <Td> </Td> </Tr> <Tr> <Td> Fred Sackett </Td> <Td> Kentucky </Td> <Td> January 9, 1930 </Td> <Td> </Td> </Tr> <Tr> <Td> Cordell Hull </Td> <Td> Tennessee </Td> <Td> March 3, 1933 </Td> <Td> </Td> </Tr> <Tr> <Td> Claude Swanson </Td> <Td> Virginia </Td> <Td> March 3, 1933 </Td> <Td> </Td> </Tr> <Tr> <Td> Sam Bratton </Td> <Td> New Mexico </Td> <Td> June 24, 1933 </Td> <Td> </Td> </Tr> <Tr> <Td> Hugo Black </Td> <Td> Alabama </Td> <Td> August 19, 1937 </Td> <Td> </Td> </Tr> <Tr> <Td> Bibb Graves </Td> <Td> Alabama </Td> <Td> January 10, 1938 </Td> <Td> </Td> </Tr> <Tr> <Td> Harry Moore </Td> <Td> New Jersey </Td> <Td> January 17, 1938 </Td> <Td> </Td> </Tr> <Tr> <Td> Frederick Steiwer </Td> <Td> Oregon </Td> <Td> January 31, 1938 </Td> <Td> </Td> </Tr> <Tr> <Td> Gibbs McAdoo </Td> <Td> California </Td> <Td> November 8, 1938 </Td> <Td> </Td> </Tr> <Tr> <Td> Matthew Neely </Td> <Td> West Virginia </Td> <Td> January 12, 1941 </Td> <Td> </Td> </Tr> <Tr> <Td> John Miller </Td> <Td> Arkansas </Td> <Td> March 31, 1941 </Td> <Td> </Td> </Tr> <Tr> <Td> James Byrnes </Td> <Td> South Carolina </Td> <Td> July 8, 1941 </Td> <Td> </Td> </Tr> <Tr> <Td> Henry Cabot Lodge, Jr . </Td> <Td> Massachusetts </Td> <Td> February 3, 1944 </Td> <Td> </Td> </Tr> <Tr> <Td> Homer Bone </Td> <Td> Washington </Td> <Td> November 13, 1944 </Td> <Td> </Td> </Tr> <Tr> <Td> Sinclair Weeks </Td> <Td> Massachusetts </Td> <Td> December 19, 1944 </Td> <Td> </Td> </Tr> <Tr> <Td> Monrad Wallgren </Td> <Td> Washington </Td> <Td> January 9, 1945 </Td> <Td> </Td> </Tr> <Tr> <Td> Harry Truman </Td> <Td> Missouri </Td> <Td> January 17, 1945 </Td> <Td> Resigned to become Vice President of the United States </Td> </Tr> <Tr> <Td> Harold Burton </Td> <Td> Ohio </Td> <Td> September 30, 1945 </Td> <Td> </Td> </Tr> <Tr> <Td> Happy Chandler </Td> <Td> Kentucky </Td> <Td> November 1, 1945 </Td> <Td> </Td> </Tr> <Tr> <Td> Warren Austin </Td> <Td> Vermont </Td> <Td> August 2, 1946 </Td> <Td> </Td> </Tr> <Tr> <Td> Hugh Mitchell </Td> <Td> Washington </Td> <Td> December 25, 1946 </Td> <Td> </Td> </Tr> <Tr> <Td> Vera Bushfield </Td> <Td> South Dakota </Td> <Td> December 26, 1948 </Td> <Td> </Td> </Tr> <Tr> <Td> Alben Barkley </Td> <Td> Kentucky </Td> <Td> January 19, 1949 </Td> <Td> </Td> </Tr> <Tr> <Td> Robert Wagner </Td> <Td> New York </Td> <Td> June 28, 1949 </Td> <Td> </Td> </Tr> <Tr> <Td> Howard McGrath </Td> <Td> Rhode Island </Td> <Td> August 23, 1949 </Td> <Td> </Td> </Tr> <Tr> <Td> Raymond Baldwin </Td> <Td> Connecticut </Td> <Td> December 16, 1949 </Td> <Td> </Td> </Tr> <Tr> <Td> Sheridan Downey </Td> <Td> California </Td> <Td> November 30, 1950 </Td> <Td> </Td> </Tr> <Tr> <Td> Ralph Brewster </Td> <Td> Maine </Td> <Td> December 31, 1952 </Td> <Td> </Td> </Tr> <Tr> <Td> Richard Nixon </Td> <Td> California </Td> <Td> January 1, 1953 </Td> <Td> Resigned to become Vice President of the United States </Td> </Tr> <Tr> <Td> Charles Daniel </Td> <Td> South Carolina </Td> <Td> December 23, 1954 </Td> <Td> </Td> </Tr> <Tr> <Td> Hazel Abel </Td> <Td> Nebraska </Td> <Td> December 31, 1954 </Td> <Td> </Td> </Tr> <Tr> <Td> Strom Thurmond </Td> <Td> South Carolina </Td> <Td> April 4, 1956 </Td> <Td> </Td> </Tr> <Tr> <Td> Price Daniel </Td> <Td> Texas </Td> <Td> January 14, 1957 </Td> <Td> </Td> </Tr> <Tr> <Td> John F. Kennedy </Td> <Td> Massachusetts </Td> <Td> December 22, 1960 </Td> <Td> Resigned to take office as President of the United States </Td> </Tr> <Tr> <Td> Lyndon Johnson </Td> <Td> Texas </Td> <Td> January 3, 1961 </Td> <Td> Resigned to take office as Vice President of the United States </Td> </Tr> <Tr> <Td> Hubert Humphrey </Td> <Td> Minnesota </Td> <Td> December 29, 1964 </Td> <Td> Resigned to take office as Vice President of the United States </Td> </Tr> <Tr> <Td> Pierre Salinger </Td> <Td> California </Td> <Td> December 31, 1964 </Td> <Td> </Td> </Tr> <Tr> <Td> Harry Byrd </Td> <Td> Virginia </Td> <Td> November 10, 1965 </Td> <Td> </Td> </Tr> <Tr> <Td> John Williams </Td> <Td> Delaware </Td> <Td> December 31, 1970 </Td> <Td> </Td> </Tr> <Tr> <Td> George Murphy </Td> <Td> California </Td> <Td> January 2, 1971 </Td> <Td> </Td> </Tr> <Tr> <Td> William Saxbe </Td> <Td> Ohio </Td> <Td> January 3, 1974 </Td> <Td> </Td> </Tr> <Tr> <Td> Alan Bible </Td> <Td> Nevada </Td> <Td> December 17, 1974 </Td> <Td> </Td> </Tr> <Tr> <Td> Wallace Bennett </Td> <Td> Utah </Td> <Td> December 20, 1974 </Td> <Td> </Td> </Tr> <Tr> <Td> Howard Metzenbaum </Td> <Td> Ohio </Td> <Td> December 23, 1974 </Td> <Td> </Td> </Tr> <Tr> <Td> Marlow Cook </Td> <Td> Kentucky </Td> <Td> December 27, 1974 </Td> <Td> </Td> </Tr> <Tr> <Td> J. William Fulbright </Td> <Td> Arkansas </Td> <Td> December 31, 1974 </Td> <Td> </Td> </Tr> <Tr> <Td> Edward Gurney </Td> <Td> Florida </Td> <Td> December 31, 1974 </Td> <Td> </Td> </Tr> <Tr> <Td> Sam Ervin </Td> <Td> North Carolina </Td> <Td> December 31, 1974 </Td> <Td> </Td> </Tr> <Tr> <Td> Stuart Symington </Td> <Td> Missouri </Td> <Td> December 27, 1976 </Td> <Td> </Td> </Tr> <Tr> <Td> John Pastore </Td> <Td> Rhode Island </Td> <Td> December 28, 1976 </Td> <Td> </Td> </Tr> <Tr> <Td> Walter Mondale </Td> <Td> Minnesota </Td> <Td> December 30, 1976 </Td> <Td> Resigned to take office as Vice President of the United States </Td> </Tr> <Tr> <Td> Paul Hatfield </Td> <Td> Montana </Td> <Td> December 12, 1978 </Td> <Td> </Td> </Tr> <Tr> <Td> James Pearson </Td> <Td> Kansas </Td> <Td> December 23, 1978 </Td> <Td> </Td> </Tr> <Tr> <Td> Wendell Anderson </Td> <Td> Minnesota </Td> <Td> December 29, 1978 </Td> <Td> </Td> </Tr> <Tr> <Td> Clifford Hansen </Td> <Td> Wyoming </Td> <Td> December 31, 1978 </Td> <Td> </Td> </Tr> <Tr> <Td> Edmund Muskie </Td> <Td> Maine </Td> <Td> May 7, 1980 </Td> <Td> Resigned to take office as United States Secretary of State </Td> </Tr> <Tr> <Td> John Durkin </Td> <Td> New Hampshire </Td> <Td> December 29, 1980 </Td> <Td> </Td> </Tr> <Tr> <Td> Richard Stone </Td> <Td> Florida </Td> <Td> December 31, 1980 </Td> <Td> </Td> </Tr> <Tr> <Td> Harrison Williams </Td> <Td> New Jersey </Td> <Td> March 11, 1982 </Td> <Td> </Td> </Tr> <Tr> <Td> Paul Tsongas </Td> <Td> Massachusetts </Td> <Td> January 2, 1985 </Td> <Td> </Td> </Tr> <Tr> <Td> David Karnes </Td> <Td> Nebraska </Td> <Td> December 8, 1988 </Td> <Td> </Td> </Tr> <Tr> <Td> Dan Quayle </Td> <Td> Indiana </Td> <Td> January 3, 1989 </Td> <Td> Resigned to take office as Vice President of the United States </Td> </Tr> <Tr> <Td> Gordon Humphrey </Td> <Td> New Hampshire </Td> <Td> December 4, 1990 </Td> <Td> </Td> </Tr> <Tr> <Td> Pete Wilson </Td> <Td> California </Td> <Td> January 7, 1991 </Td> <Td> Resigned to take office as Governor of California </Td> </Tr> <Tr> <Td> Kent Conrad </Td> <Td> North Dakota </Td> <Td> December 14, 1992 </Td> <Td> </Td> </Tr> <Tr> <Td> Al Gore </Td> <Td> Tennessee </Td> <Td> January 2, 1993 </Td> <Td> Resigned to take office as Vice President of the United States . </Td> </Tr> <Tr> <Td> Lloyd Bentsen </Td> <Td> Texas </Td> <Td> January 20, 1993 </Td> <Td> Resigned to take office as United States Secretary of the Treasury </Td> </Tr> <Tr> <Td> David Boren </Td> <Td> Oklahoma </Td> <Td> December 15, 1994 </Td> <Td> </Td> </Tr> <Tr> <Td> Bob Packwood </Td> <Td> Oregon </Td> <Td> October 1, 1995 </Td> <Td> </Td> </Tr> <Tr> <Td> Bob Dole </Td> <Td> Kansas </Td> <Td> June 11, 1996 </Td> <Td> Resigned to run for President of the United States </Td> </Tr> <Tr> <Td> Frank Murkowski </Td> <Td> Alaska </Td> <Td> December 2, 2002 </Td> <Td> Resigned to become Governor of Alaska </Td> </Tr> <Tr> <Td> Jon Corzine </Td> <Td> New Jersey </Td> <Td> January 17, 2006 </Td> <Td> Resigned to become Governor of New Jersey </Td> </Tr> <Tr> <Td> Trent Lott </Td> <Td> Mississippi </Td> <Td> December 18, 2007 </Td> <Td> </Td> </Tr> <Tr> <Td> Barack Obama </Td> <Td> Illinois </Td> <Td> November 16, 2008 </Td> <Td> Resigned to take office as President of the United States </Td> </Tr> <Tr> <Td> Joe Biden </Td> <Td> Delaware </Td> <Td> January 15, 2009 </Td> <Td> Resigned to become Vice President of the United States </Td> </Tr> <Tr> <Td> Ken Salazar </Td> <Td> Colorado </Td> <Td> January 20, 2009 </Td> <Td> Resigned to become United States Secretary of the Interior </Td> </Tr> <Tr> <Td> Hillary Clinton </Td> <Td> New York </Td> <Td> January 21, 2009 </Td> <Td> Resigned to become Secretary of State . </Td> </Tr> <Tr> <Td> Mel Martínez </Td> <Td> Florida </Td> <Td> September 9, 2009 </Td> <Td> </Td> </Tr> <Tr> <Td> John Ensign </Td> <Td> Nevada </Td> <Td> March 3, 2011 </Td> <Td> </Td> </Tr> <Tr> <Td> Jim DeMint </Td> <Td> South Carolina </Td> <Td> January 1, 2013 </Td> <Td> </Td> </Tr> <Tr> <Td> John Kerry </Td> <Td> Massachusetts </Td> <Td> February 1, 2013 </Td> <Td> Resigned to become Secretary of State </Td> </Tr> <Tr> <Td> Max Baucus </Td> <Td> Montana </Td> <Td> February 6, 2014 </Td> <Td> Resigned to become Ambassador to China </Td> </Tr> <Tr> <Td> Tom Coburn </Td> <Td> Oklahoma </Td> <Td> January 3, 2015 </Td> <Td> </Td> </Tr> <Tr> <Td> Jeff Sessions </Td> <Td> Alabama </Td> <Td> February 8, 2017 </Td> <Td> Resigned to become Attorney General </Td> </Tr> <Tr> <Td> Al Franken </Td> <Td> Minnesota </Td> <Td> January 2, 2018 </Td> <Td> Resigned after allegations of sexual harassment . He said he expected that an investigation would clear him but he could not do his job and undergo investigation at the same time . </Td> </Tr> </Table> <Tr> <Th> Name </Th> <Th> State </Th> <Th> Date of resignation </Th> <Th> Notes </Th> </Tr>

When was the last time a us senator resigned