Possible Clues:

• Like Carter's presidency
• Like Hoover and Carter’s presidencies
• Six years, in the U.S. Senate
• Like the presidencies of Taft and Hoover
• What Taft, Hoover and Carter each had
• Like many an unsuccessful politician
• Four years as governor, say
• Not re-elected
• Like the Van Buren presidency
• Something John Adams and John Quincy Adams each had