“If one was shot down and the pilots were killed or captured.......and the Iranians sold the B-2 leftovers to Russia and China for studying then yes, his presidency would take a serious hit.”
That’s never happened in the history of aviation.
(That’s never happened in the history of aviation.)
Stop being naive! There’s always a first time. Remember when nobody thought our F-117A Nighthawk Stealth Attack Jet was shot down by the Yugoslavian Army in 1999? It happened. How about when the Iranians hacked into our batwing stealth drone and landed it when the Usurper was president? Nobody thought that would happen either.