Granted, David Cameron is a prime minister leading a coalition government, but it still was something of a triumph for representative democracy when Cameron actually felt the need to go to Parliament for approval before joining Obama in military action in Syria. Granted, the vote opposing involvement in Syria was non-binding, but one suspects Cameron feels pretty much bound.
Now it's time for Obama to go to Congress. Unless my admittedly deteriorating memory totally has failed me, Obama ran, in 2008, against the imperial presidency claimed by his excellency the W. Ah, how soon he forgets.
We cannot know how Congress might vote. Knee-jerk opposition to Obama in the House might hurt him, but those same oppositional assholes really hate those Muslim types, and don't care very much which bunch we bomb. Which prejudice will prevail?
Personally, I'm horrified by what the Syrians (not to mention the Iraqis and Afghans) are inclined to do to each other, but I don't think lobbing a few missiles would make much difference, and I'd lay odds a couple of missiles would be less accurate than currently claimed, and blow up a bunch of women and children.
Go to Congress, Barack. Share the blame.