Miscellaneous: In one scene while campaigning, the background was not cut out and the digital marquee from the modern day Kansas City downtown building is visible.
Incorrectly regarded as goofs: Incorrectly regarded as goof: "Harry Truman was left-handed but the film shows Gary Sinese writing right-handed." Truman was born naturally left-handed, but he was raised to be right-handed. Truman in fact wrote right-handed, and there are many photos of Truman showing him at his desk with a pen in his right hand.
Factual errors: Just after Tom Pendergast's death, Truman sits down at a card table to play poker. The dealer says they are playing five-card stud, but then proceeds to deal each player two cards face down. A five-card stud hand consists of a single hole card and four cards that are dealt face up.