Tbh they never expected him to be convicted so while I think he should have been I’m not entirely sure what they had to gain here.
If they’d just let him fade away he wouldn’t have gained any further attention. By doing this they’ve played right into his hands.
I don’t actually think the republicans would vote him in as contender because while they have voted to acquit him he did cause a lot of disquiet within the party because of his reactions to COVID, the election etc.
He has said that he will create his own party in which case he won’t stand a chance.
Besides which there’s every chance he’ll be dead by then or at least incapacitated.