This is the chance for the GOP to ends the arms race. If they push forward with this and lose the POTUS and Senate, the Dems will quickly eliminate any remaining element of the filibuster, increase SCOTUS justices from 9 to 15, and expand the federal district and appellate courts as well. I don't see how they can sit around and act like the federal judiciary is legitimate when the GOP continues to play games to stock it full, in many cases, of completely unqualified judges who are simply there to do the political bidding of the GOP. For God's sake, Trump is nominating people as judges who have not argued so much as a motion to dismiss before.