First his mind; now his teeth.
As moderator David Muir asked a question of Biden, the candidate could be seen moving his mouth around as though he was chewing gum. At the conclusion of Muir’s question, Biden seemed to fumble with his teeth, trying to keep them in his face.
See for yourself here.
The irony of the moment wasn’t lost on President Trump, who tweeted “No surprise here, all those guys are toothless.”