<Tr> <Td> 25th </Td> <Td> Addresses succession to the Presidency and establishes procedures both for filling a vacancy in the office of the Vice President, as well as responding to Presidential disabilities . </Td> <Td> July 6, 1965 </Td> <Td> February 10, 1967 </Td> <Td> 1 year 7 months 4 days </Td> </Tr> <Tr> <Td> 26th </Td> <Td> Prohibits the denial of the right of US citizens, eighteen years of age or older, to vote on account of age . </Td> <Td> March 23, 1971 </Td> <Td> July 1, 1971 </Td> <Td> 3 months 8 days </Td> </Tr> <Tr> <Td> 27th </Td> <Td> Delays laws affecting Congressional salary from taking effect until after the next election of representatives . </Td> <Td> September 25, 1789 </Td> <Td> May 5, 1992 </Td> <Td> 202 years 7 months 10 days </Td> </Tr> <Table> <Tr> <Td> "Y" indicates that the state ratified the amendment . </Td> </Tr> <Tr> <Td> "N" indicates that the state rejected the amendment and has not ratified it . </Td> </Tr> <Tr> <Td> "Y" indicates that the state's ratification of the amendment came after the state had officially rejected it . </Td> </Tr> <Tr> <Td> "Y" indicates that after officially ratifying the amendment the state rescinded that ratification, but later re-ratified it . </Td> </Tr> <Tr> <Td> "--" indicates that the state did not complete action on the amendment . </Td> </Tr> <Tr> <Td> "" indicates that the amendment was ratified before the state joined the Union . </Td> </Tr> </Table>

When was the last time the constitution amended