Bono fell off a pushbike in NY.
Maybe some of these people were getting reminders not to break ranks at times when they might have been inclined to crack?
'We can get you anywhere, anytime. Keep in message'
Just turn his votes over to the New Democrat candidate?
There isn't a single person Not Voting for Trump that's going to change their mind if Biden dropped out. They'd vote for a Fridge Magnet rather than dropping a vote Trump's way.