I will say this about Robin Williams, he had Biden nailed way back in 2009:
Language Warning
https://www.youtube.com/watch?v=jHHUkTRFvew
The vulgarity was his one vice. He had enough talent he didn’t need to curse. But yeah. He had Foe nailed back when he was still just a joke. Now he’s an actual menace, and I don’t feel like laughing at his senile idiocies anymore.
I don’t think Robin Williams was funny at all. He was a bad imitation of my favorite comedian, Jonathan Winters. On the other hand I thought he was an excellent serious actor.