During the Democratic primary, Biden promised to beat Donald Trump ... he’ll fall into yet another Dewey parallel. In the days before the election, Harry Truman accused his opponent of ...

1948 - Truman runs against Thomas E. Dewey, the Republican nominee in the 1948 presidential election. The scientific pollsters, including George Gallup, all predicted that Dewey would beat Truman.

After succeeding Franklin Roosevelt in 1945, Harry S. Truman won the presidency in his own right in 1948, defeating Republican Thomas Dewey and achieving one of the most stunning political comebacks ...

Harry S. Truman’s stunning ... In their respective polls, Gallup and Crossley projected Dewey’s victory by 5 percentage points. Truman carried the popular vote by 4.5 points and won 303 ...