I’m betting Schumer just drives it through to an acquittal in no more than two real trial days. We should be prepared for that.
The point is to drag the SOB through the process and grind as much information out of him as possible and then use that information against all his overseers and co-conspirators.
They will have to face voters and explain why they voted for acquittal in the face of all that evidence. It’s a tactic pioneered by them.