That’s exactly what happened in 1948, the extraordinary upset that saw President Harry Truman win reelection against New York Governor Thomas Dewey. Few observers predicted that result at the ...

Newspapers were so sure the pollsters were right that they printed the headline, "Dewey Beats Truman." But they were wrong. Truman beat Dewey and the race wasn't even that close (Truman won by 3.5 ...