Historical rankings of presidents of the United States former director of the University of Maryland's African American Leadership Institute, stated that Presidents ranked by how each one balanced the interests of majority interests and the interests of excluded groups was practical in respect to American debate on racial politics. Presidents have traditionally been ranked on personal qualities and their leadership ability to solve problems that move the nation in a positive direction. Walters stated there was a qualitative difference between white and African American intellectuals in evaluating presidents. In the 1996 "New York Times" poll by Arthur M. Schlesinger Jr., 31 white historians and one black historian ranked
The X-Presidents "X-Men". Their wives are also members of a similar group, "The X-First Ladies", with more flamboyant powers. In the episode "Nixon," Richard Nixon and his dog Checkers are resurrected to aid the group. As of 2018, Ford, Reagan and Bush have become "Ex-X-Presidents" since their deaths, leaving Carter as the only remaining member of the original team. Presidents Bill Clinton, George W. Bush and Barack Obama attempted to join the group after leaving office but were hindered by their lack of superpowers. The cartoons end with the X-Presidents singing a song that recounts the episode's message. "The Ambiguously Gay Duo",