40. Warren G. Harding (1921-1923)
In the rankings, the scandals plaguing Harding’s tenure in office, such as the infamous Teapot Dome scandal, in which cronies benefited from secret oil deals as well as his extramarital affair with Nan Britton, kept him low in rankings.
39. John Tyler (1841-1845)
Historians blame Tyler for his weak pursuit of equal justice for all Americans. When Tyler’s predecessor died, he became the first vice president ever elected to the presidency with a strong advocate for state rights. He joined the Southern Confederacy later on.