idealists seldom make good presidents, or even good decisions
but they're also sometimes not war criminals so...

"Many in the United States were outraged by what they perceived to be an overly harsh sentence for Calley. Georgia's Governor, Jimmy Carter, future President of the United States, instituted American Fighting Man's Day, and asked Georgians to drive for a week with their lights on."

That was First Lieutenant William Calley of the infamous My Lai Massacre, if context is needed.
https://en.wikipedia.org/wiki/William_Calley

Jimmy Carter could be relied upon to make the worst choice in any complex situation...