Illinois Sen. Mark Kirk has become the first Republican senator to
break with party leaders and call for a vote on President Barack Obama's Supreme Court pick. Kirk says the Senate should "man up and cast a vote."
Obama nominated U.S. appeals court Judge Merrick Garland on Wednesday to the vacancy created by Justice Antonin Scalia's death in February.
Backed by nearly all GOP senators, Majority Leader Mitch McConnell of Kentucky has said there won't be a Senate Judiciary Committee hearing or vote on Obama's pick. Republicans say that should wait for the next president's nominee.
Kirk says he doesn't expect McConnell to change his mind.