It's the only way anyone will understand him.
On his own hs speaks gibberish fluently but the stakes are very high and he has been informed he has to do as well as Joe Biden did which we know ain't gonna happen. What to do? DUB.
He will be moving his mouth vigorously but the words that come out will be spoken by others and of course there will be no attempt at matching how pumpkina** moves his lips with the words coming out of them theoretocally.
I think they'd better have guards on stage too. Sarah Cooper who does pumpkina** so well might sneak on camera for a few laughs. Can't have that. Very serious very somber very stiff.