With the possible exception of 14 senators, the deal avoiding a vote on the nuclear option has left no one too happy: The GOP gave up an unconditional end to judicial filibusters, and Democrats must now adhere to the opaque standard of "extraordinary circumstances." With the prospect of a Supreme Court vacancy emerging soon, the challenge for Democrats is finding a way to object to a potential nominee under the guise of the new standard without setting off a retaliation that will dismantle the filibuster.
Details here from Legal Times via Law.com.