Truman, although Eisenhower was sworn in when I was 4 months old. I was so happy about that I peed in my pants.

FWIW, the first campaign jingle I remember, to the tune of "Whistle while you work".

Whistle while you work,
Stevenson's a jerk,
Eisenhower has the power
to-oo do the work!


Gunnery, gunnery, gunnery.
Hit the target, all else is twaddle!