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.

Truman's quandary 76 years ago in 1948 against New York Gov. Thomas Dewey. The comparisons are undeniable and offer lessons for both today's president and the apparent Republican nominee ...

Thought to have little chance of winning the election in 1948. Stuns." He showed the famous "Dewey Beats Truman" newspaper headline that ran, despite Truman actually pulling out a surprise victory.