These American Presidents were disastrous. Welcome to WatchMojo, and today we’re counting down our picks for the U.S. Presidents who have been condemned by history and scholars for their lackluster leadership. Our countdown of the worst U.S. Presidents includes George W. Bush, James Buchanan, Donald Trump, Herbert Hoover, Andrew Johnson, and more! Politics are contentious, so we know many of you have rankings of your own. Share your own thoughts - respectfully - in the comments.

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