Power Corrupts

The President does not have power under the Constitution to unilaterally authorize a military attack in a situation that does not involve stopping an actual or imminent threat to the nation.

--Barrack Obama, 2008

Via Glen Greenwald. Of course the President has not yet sent American troops or planes into Libya, but this seems to be the nearly inevitable outcome of the UN resolution he supported, and as yet there has not even been any discussion about a vote.