I would bet that that not a single one of them would.
Who wants to go down with the president ?
Without a lot of Democrat votes the President isn't going down.
Pretty much everyone is going to care more about saving their own skin followed by loyalty to the party.
In politics the first part generally depends on the second part.
Except that there isn’t going to be a party left to support if they stick with Biden. For what possible reason ? Who isn’t going to disassociate themselves from crimes of this magnitude ?