After five years of stall tactics and changing the rules to whatever suits him, Senator Ron Johnson long ago forfeited whatever deference he feels he is owed. The president has a list of names and he should act, selecting the nominee who will best protect the rights of everyday people in Illinois, Indiana, and Wisconsin.
To say that the judiciary is duty-bound to say "what the law is" and should not simply rubber-stamp the actions of the other branches is not to say that the other branches have a duty to obey its decisions. But holding the contrary position would make the judiciary an inferior branch and risk creating an uncertain and dangerous state of affairs.
The invocation of the nuclear option last November addressed a real problem with the functioning of the Senate, paved the way for a new generation of insightful legal minds to join the ranks of the federal judiciary, and has allowed the president to address the nation's judicial vacancy crisis by accelerating the pace of confirmations. We are all better off for it.