<P> New Mexico was admitted to the Union on January 6, 1912, and elects senators in Class 1 and Class 2 . Its current Senators are Democrats Tom Udall and Martin Heinrich . </P> <Table> <Tr> <Td_colspan="6"> <P> Class 1 </P> <P> Class 1 U.S. Senators belong to the electoral cycle that has recently been contested in 1994, 2000, 2006, and 2012 . The next election will be in 2018 . </P> </Td> <Th> o n g r s s </Th> <Td_colspan="6"> <P> Class 2 </P> <P> Class 2 U.S. Senators belong to the electoral cycle that has recently been contested in 1996, 2002, 2008, and 2014 . The next election will be in 2020 . </P> </Td> </Tr> <Tr> <Th> #</Th> <Th> Senator </Th> <Th> Party </Th> <Th> Years in office </Th> <Th> Electoral history </Th> <Th> r m </Th> <Th> r m </Th> <Th> Electoral history </Th> <Th> Years in office </Th> <Th> Party </Th> <Th> Senator </Th> <Th> #</Th> </Tr> <Tr> <Td_colspan="3"> Vacant </Td> <Td> January 6, 1912--March 27, 1912 </Td> <Td> New Mexico became a state January 6, 1912 but didn't elect its senators until March 27, 1912 . </Td> <Td> </Td> <Td> 62nd </Td> <Td> </Td> <Td> New Mexico became a state January 6, 1912 but didn't elect its senators until March 27, 1912 . </Td> <Td> January 6, 1912--March 27, 1912 </Td> <Td_colspan="3"> Vacant </Td> </Tr> <Tr> <Th> </Th> <Td> Thomas B. Catron </Td> <Td> Republican </Td> <Td> March 27, 1912--March 4, 1917 </Td> <Td> Elected March 27, 1912 . Retired . </Td> <Td> Elected March 27, 1912 . </Td> <Td> March 27, 1912--March 4, 1921 </Td> <Td> Republican </Td> <Td> Albert B. Fall </Td> <Th> </Th> </Tr> <Tr> <Td> 63rd </Td> <Td> </Td> <Td> Elected June 6, 1912 to next term, but Legislature invalided that election . Elected January 28, 1913 to next term . </Td> </Tr> <Tr> <Td> 64th </Td> </Tr> <Tr> <Th> </Th> <Td> Andrieus A. Jones </Td> <Td> Democratic </Td> <Td> March 4, 1917--December 20, 1927 </Td> <Td> Elected in 1916 . </Td> <Td> </Td> <Td> 65th </Td> </Tr> <Tr> <Td> 66th </Td> <Td> </Td> <Td> Re-elected in 1918 . Resigned to become U.S. Secretary of the Interior . </Td> </Tr> <Tr> <Td> 67th </Td> <Td> </Td> <Td> March 4, 1921--March 11, 1921 </Td> <Td_colspan="3"> Vacant </Td> </Tr> <Tr> <Td> Appointed to continue Fall's term . Elected September 20, 1921 to finish Fall's term . Lost re-election . </Td> <Td> March 11, 1921--March 4, 1925 </Td> <Td> Republican </Td> <Td> Holm O. Bursum </Td> <Th> </Th> </Tr> <Tr> <Td> Re-elected in 1922 . Died . </Td> <Td> </Td> <Td> 68th </Td> </Tr> <Tr> <Td> 69th </Td> <Td> </Td> <Td> Elected in 1924 . </Td> <Td> March 4, 1925--June 24, 1933 </Td> <Td> Democratic </Td> <Td> Sam G. Bratton </Td> <Th> </Th> </Tr> <Tr> <Td> 70th </Td> </Tr> <Tr> <Td_colspan="3"> Vacant </Td> <Td> December 20, 1927--December 29, 1927 </Td> <Td> </Td> </Tr> <Tr> <Th> </Th> <Td> Bronson M. Cutting </Td> <Td> Republican </Td> <Td> December 29, 1927--December 6, 1928 </Td> <Td> Appointed to continue Jones's term . Retired when elected successor qualified . </Td> </Tr> <Tr> <Th> </Th> <Td> Octaviano Larrazolo </Td> <Td> Republican </Td> <Td> December 7, 1928--March 4, 1929 </Td> <Td> Elected in 1928 to finish Jones's term . Retired due to illness . </Td> </Tr> <Tr> <Th> 5 </Th> <Td> Bronson M. Cutting </Td> <Td> Republican </Td> <Td> March 4, 1929--May 6, 1935 </Td> <Td> Elected in 1928 . </Td> <Td> </Td> <Td> 71st </Td> </Tr> <Tr> <Td> 72nd </Td> <Td> 5 </Td> <Td> Re-elected in 1930 . Resigned to become a judge of the U.S. Court of Appeals . </Td> </Tr> <Tr> <Td> 73rd </Td> </Tr> <Tr> <Td> </Td> <Td> June 24, 1933--October 10, 1933 </Td> <Td_colspan="3"> Vacant </Td> </Tr> <Tr> <Td> Appointed to continue Bratton's term Elected November 6, 1934 to finish Bratton's term . </Td> <Td> October 10, 1933--January 3, 1949 </Td> <Td> Democratic </Td> <Td> Carl Hatch </Td> <Th> </Th> </Tr> <Tr> <Td> Re-elected in 1934 . Died . </Td> <Td> 5 </Td> <Td> 74th </Td> </Tr> <Tr> <Td_colspan="3"> Vacant </Td> <Td> May 6, 1935--May 11, 1935 </Td> <Td> </Td> </Tr> <Tr> <Th> 6 </Th> <Td> Dennis Chavez </Td> <Td> Democratic </Td> <Td> May 11, 1935--November 18, 1962 </Td> <Td> Appointed to continue Cutting's term . Elected November 3, 1936 to finish Cutting's term . </Td> </Tr> <Tr> <Td> 75th </Td> <Td> 6 </Td> <Td> Re-elected in 1936 . </Td> </Tr> <Tr> <Td> 76th </Td> </Tr> <Tr> <Td> Re-elected in 1940 . </Td> <Td> 6 </Td> <Td> 77th </Td> </Tr> <Tr> <Td> 78th </Td> <Td> 7 </Td> <Td> Re-elected in 1942 . Retired . </Td> </Tr> <Tr> <Td> 79th </Td> </Tr> <Tr> <Td> Re-elected in 1946 . </Td> <Td> 7 </Td> <Td> 80th </Td> </Tr> <Tr> <Td> 81st </Td> <Td> 8 </Td> <Td> Elected in 1948 . </Td> <Td> January 3, 1949--January 3, 1973 </Td> <Td> Democratic </Td> <Td> Clinton P. Anderson </Td> <Th> 5 </Th> </Tr> <Tr> <Td> 82nd </Td> </Tr> <Tr> <Td> Re-elected in 1952 . </Td> <Td> 8 </Td> <Td> 83rd </Td> </Tr> <Tr> <Td> 84th </Td> <Td> 9 </Td> <Td> Re-elected in 1954 . </Td> </Tr> <Tr> <Td> 85th </Td> </Tr> <Tr> <Td> Re-elected in 1958 . Died . </Td> <Td> 9 </Td> <Td> 86th </Td> </Tr> <Tr> <Td> 87th </Td> <Td> 10 </Td> <Td> Re-elected in 1960 . </Td> </Tr> <Tr> <Td_colspan="3"> Vacant </Td> <Td> November 18, 1962--November 30, 1962 </Td> </Tr> <Tr> <Th> 7 </Th> <Td> Edwin L. Mechem </Td> <Td> Republican </Td> <Td> November 30, 1962--November 3, 1964 </Td> <Td> Self - appointed to continue Chavez's term . Lost election to finish Chavez's term . </Td> </Tr> <Tr> <Td> 88th </Td> </Tr> <Tr> <Th> 8 </Th> <Td> Joseph Montoya </Td> <Td> Democratic </Td> <Td> November 4, 1964--January 3, 1977 </Td> <Td> Elected in 1964 to finish Chavez's term . </Td> </Tr> <Tr> <Td> Re-elected in 1964 . </Td> <Td> 10 </Td> <Td> 89th </Td> </Tr> <Tr> <Td> 90th </Td> <Td> 11 </Td> <Td> Re-elected in 1966 . Retired . </Td> </Tr> <Tr> <Td> 91st </Td> </Tr> <Tr> <Td> Re-elected in 1970 . Lost re-election . </Td> <Td> 11 </Td> <Td> 92nd </Td> </Tr> <Tr> <Td> 93rd </Td> <Td> 12 </Td> <Td> Elected in 1972 . </Td> <Td> January 3, 1973--January 3, 2009 </Td> <Td> Republican </Td> <Td> Pete Domenici </Td> <Th> 6 </Th> </Tr> <Tr> <Td> 94th </Td> </Tr> <Tr> <Th> 9 </Th> <Td> Harrison Schmitt </Td> <Td> Republican </Td> <Td> January 3, 1977--January 3, 1983 </Td> <Td> Elected in 1976 . Lost re-election . </Td> <Td> 12 </Td> <Td> 95th </Td> </Tr> <Tr> <Td> 96th </Td> <Td> 13 </Td> <Td> Re-elected in 1978 . </Td> </Tr> <Tr> <Td> 97th </Td> </Tr> <Tr> <Th> 10 </Th> <Td> Jeff Bingaman </Td> <Td> Democratic </Td> <Td> January 3, 1983--January 3, 2013 </Td> <Td> Elected in 1982 . </Td> <Td> 13 </Td> <Td> 98th </Td> </Tr> <Tr> <Td> 99th </Td> <Td> 14 </Td> <Td> Re-elected in 1984 . </Td> </Tr> <Tr> <Td> 100th </Td> </Tr> <Tr> <Td> Re-elected in 1988 . </Td> <Td> 14 </Td> <Td> 101st </Td> </Tr> <Tr> <Td> 102nd </Td> <Td> 15 </Td> <Td> Re-elected in 1990 . </Td> </Tr> <Tr> <Td> 103rd </Td> </Tr> <Tr> <Td> Re-elected in 1994 . </Td> <Td> 15 </Td> <Td> 104th </Td> </Tr> <Tr> <Td> 105th </Td> <Td> 16 </Td> <Td> Re-elected in 1996 . </Td> </Tr> <Tr> <Td> 106th </Td> </Tr> <Tr> <Td> Re-elected in 2000 . </Td> <Td> 16 </Td> <Td> 107th </Td> </Tr> <Tr> <Td> 108th </Td> <Td> 17 </Td> <Td> Re-elected in 2002 . Retired . </Td> </Tr> <Tr> <Td> 109th </Td> </Tr> <Tr> <Td> Re-elected in 2006 . Retired . </Td> <Td> 17 </Td> <Td> 110th </Td> </Tr> <Tr> <Td> 111th </Td> <Td> 18 </Td> <Td> Elected in 2008 . </Td> <Td> January 3, 2009--Present </Td> <Td> Democratic </Td> <Td> Tom Udall </Td> <Th> 7 </Th> </Tr> <Tr> <Td> 112th </Td> </Tr> <Tr> <Th> 11 </Th> <Td> Martin Heinrich </Td> <Td> Democratic </Td> <Td> January 3, 2013--Present </Td> <Td> Elected in 2012 . </Td> <Td> 18 </Td> <Td> 113th </Td> </Tr> <Tr> <Td> 114th </Td> <Td> 19 </Td> <Td> Re-elected in 2014 . </Td> </Tr> <Tr> <Td> 115th </Td> </Tr> <Tr> <Td_colspan="5"> To be determined in the 2018 election . </Td> <Td> 19 </Td> <Td> 116th </Td> </Tr> <Tr> <Td> 117th </Td> <Td> 20 </Td> <Td_colspan="5"> To be determined in the 2020 election . </Td> </Tr> <Tr> <Th> #</Th> <Th> Senator </Th> <Th> Party </Th> <Th> Years in office </Th> <Th> Electoral history </Th> <Th> r m </Th> <Th> </Th> <Th> r m </Th> <Th> Electoral history </Th> <Th> Years in office </Th> <Th> Party </Th> <Th> Senator </Th> <Th> #</Th> </Tr> <Tr> <Th_colspan="6"> Class 1 </Th> <Th_colspan="6"> Class 2 </Th> </Tr> </Table> <Tr> <Td_colspan="6"> <P> Class 1 </P> <P> Class 1 U.S. Senators belong to the electoral cycle that has recently been contested in 1994, 2000, 2006, and 2012 . The next election will be in 2018 . </P> </Td> <Th> o n g r s s </Th> <Td_colspan="6"> <P> Class 2 </P> <P> Class 2 U.S. Senators belong to the electoral cycle that has recently been contested in 1996, 2002, 2008, and 2014 . The next election will be in 2020 . </P> </Td> </Tr>

What political party do both of new mexico's senators belong to