They don't really have a choice though. Senate rules now dictate that a simple majority can confirm a supreme Court Justice. Who is responsible for that development is its own debate. Regardless, it's essentially up to a couple GOP senators whether this guy gets in the court (he will). I think that's ok. However, if I we're running for Senate or the House, is be running on a platform of impeachment, but not of Trump. Of Gorsuch. That guy doesn't belong, and Congress could remove him if they had the votes.