After the scuttled nomination of Susan Rice and rumblings about stopping Chuck Hagel's, it looks as though a Senator may actually pull out their one big "check and balance" gun and put a hold on an Obama nominee. Ron Rand Paul has announced to the world that he will block the nomination of John Brennan to run the CIA until he gets a satisfactory answer on drone policy.

Paul, who is not even on the Senate committee that questioned Brennan last week, says he was not happy with Brennan's response after being directly asked if a drone could be used to kill an American citizen on U.S. soil. In a statement to Politico, Paul said "You would think the notion of that is so bizarre and absurd that he would immediately say no." He also told USA Today on Wednesday that he think Brennan ducked the question and "I find that very, very worrisome (and) we're going to do whatever it takes to get the answer." Paul even mentioned the issue in his Tea Party response to the State of the Union last night.

Paul says he will filibuster Brennan's nomination, if necessary, a drastic move that is often threatened, but rarely used on Cabinet nominees. Senate Democrats could probably find a way to break the filibuster to get Brennan approved, but the delay and noise it would create would still be an embarrassing setback for the administration that has faced a tough round of Senate hearings this term. During a hearing on Benghazi last month, Paul told then-Secretary of State Hillary Clinton that he would have fired her. Her potential replacement, Rice, never even got a hearing, and there were several threats from John McCain and Lindsey Graham, that they would block Chuck Hagel's nomination to be Secretary of Defense. However, he is expected to get through for a vote, possibly as soon as today.