The only elected president in American history to be denied his party's nomination for a second term was Democrat Franklin Pierce in 1856, but the concern then was the president's policies, not his age.
1856年,民主党人富兰克林·皮尔斯是美国历史上唯一未能获得党内连任提名的民选总统,但当时人们担心的是总统的政策,而不是他的年龄。