It's because of these hilarious things he says that I have this suspicion that Biden is actually a comedic genius who's role in this is more complex than most people think. It's almost too funny to be accidental sometimes. His posture even looks like he's doing comedy bit at the end.

https://www.youtube.com/watch?v=AD2kBy3pf3c&t=705s

In his speech after the electoral collage certification at 10 seconds in he says "certiflied" instead of certified.