Harry Truman is the professional pollsters’ Ghost of Elections Past.

Truman, our 33rd president, was practically unknown to the public when he came to the Oval Office upon the death of Franklin Delano Roosevelt on April 12, 1945. The Democrat quickly proved unpopular, so much so that in the 1946 midterm elections the GOP took control of both chambers of Congress for the first time since 1930. Truman’s approval rating continued to drop, falling to 32 percent, prompting Democratic Sen.