1) Force a "real" filibuster by the Dems? (Do you really think Chaffee and Snowe would maintain party discipline in such a confrontation?)
2) Stop all Senate business on anything else until these are approved? (And that's going to look how, exactly, to the public? Like the GOP is "doing nothing.")
The public does not understand this constitutional nuance, and if you think going to the wall over this is that important, you are asking for a Dem sweep in the Fall. Just speaking political reality. It has been the same in numerous confrontations in American political history: the answer NEVER lies in trying to win a constitutional position, but rather ALWAYS lies in defeating the opponent at the ballot box---i.e., get more than 60 conservatives.
actually getting 55-57 Repubs should make the libs cower enough to get nominees through. If it doesn't then even more libs will lose next time.