Well, based on the War Powers Act, it looks like (if we believe what he said), Obama was well within the law.
He said he did notify Congressional Leaders. His explanation is that the UN resolution was passed on a Thursday, he notified Congress on a Friday. And the president has 60 days to get congressional approval (were in day six of this now so he has 54 left).
Now, if Congress does not give him that approval, he has 30 days to bring those troops home.
Then we are in agreement...and the clock is ticking...