I've wanted them to stop playing nice ever since Newt Gingritch decided that being a colossal asshat was good politics. But they've generally held the high ground...and lost most of their power compromising with the uncompromising GOP's ever-rightward march.
If they're willing to stop playing nice by calling liars and conmen and traitors out and working to make sure we dont EVER have anyone like Trump in charge again, more power to them.