"Americans can always be trusted to do the right thing, once all other possibilities have been exhausted.”
https://www.washingtonpost.com/politics/2024/04/20/house-vote-ukraine-israel-aid-johnson/
This one's real, though, and it also fits:
"The spectacle of a number of middle-aged gentlemen who are my political opponents being in a state of uproar and fury is really quite exhilarating to me.”