What would be the motive for that Roots?

He's 81 years old, stumbling, tripping, and falling at that age doesn't mean you aren't of sound mind. There have been plenty of clips of Trump slurring his words and meandering off into a topic unrelated to what he was talking about. He's not much younger than Biden.

I'm not lying to myself about anything. Neither you are I know how long he had been having bad days.

Now, tell me, what would the Dems have to gain from purposely trying to run someone that they felt was failing so badly? If anything, it would have benefited Trump.