“How can I trust a man if his wife cannot?” - Harry Truman
“If your wife can’t trust you, why should I?” - Ross Perot
When he was still running EDS, Perot would run a report that would cross-reference employees of the opposite sex who had the same address, but weren’t married to each other. It was also known that if you stayed in a corporate apartment, cohabitation was a big no-no. The maids were instructed to look for any evidence of such activity.
Truman would get kicked out of the Democratic party for a statement like that today(and for his support of Israel).