Senator Rand Paul (R-Ky) isn’t too keen on President Obama’s choice for the leader of the Central Intelligence Agency, which he made crystal clear this afternoon when he launched a filibuster against the nomination.

Paul previously threatened to filibuster the nomination of John Brennan after receiving a letter from Attorney General Eric H. Holder Jr. that explained the United States would not rule out the use of drone strikes on U.S. soil in the case of extraordinary circumstances. Paul is against both the Brennan nomination and the Obama administration’s stance on not banning the possibility of domestic drone strikes, and so he chose today to stand on his soap box.

Brennan is currently a White House adviser who has been a key player in the Obama administration’s policy regarding the use of unmanned drones. Drones are normally used to kill suspected terrorists in foreign countries, but the administration has not ruled out, to Paul’s discontent, the use drones on U.S. soil in extreme and unlikely circumstances, such as to avoid another 9/11.

“I rise today to begin to filibuster John Brennan’s nomination for the C.I.A.,” Paul began as he commandeered the Senate floor. “I will speak until I can no longer speak. I will speak as long as it takes, until the alarm is sounded from coast to coast that our Constitution is important, that your rights to trial by jury are precious, that no American should be killed by a drone on American soil without first being charged with a crime, without first being found to be guilty by a court.”

Paul began his filibuster this afternoon, has been going for nearly 11 hours, and has so far not given up the Senate floor. He has, however, yielded — likely to a great relief — for ‘questions’ from his Republican allies Senators Ted Cruz (R-Texas) and Mike Lee (R-Utah).

Sources: New York Times, ABC News