Libya's Foreign Minister and member of Muammar al-Qaddafi's inner circle Moussa Koussa defects.

FOX's James Rosen reports from the State Department:

Play Audio Clip Listen to audio clip.

Libya's Rebels continue to lose ground including in the key oil city of Ras Lanouf.

FOX's Steve Harrigan reports from Tripoli:

Play Audio Clip Listen to audio clip.

U.S. Ambassador to the U.N. Susan Rice responded to reports that arming Libya's Rebels could be an option.

Listen HERE:

Play Audio Clip Listen to audio clip.

On Capitol Hill, constitutional questions are being asked in the Senate about the President's authority to order air strikes in Libya.

FOX News Radio's Jared Halpern reports from Washington DC:

Play Audio Clip Listen to audio clip.