The whip count on Syria has become like the war itself: No one in Washington wants to own it alone. While most top congressional leaders have vowed to back President Barack Obama in seeking authority to launch missile strikes, there’s little evidence that they can — or even want to — help him round up the rank-and file-Republicans he’ll need to win a vote in the House. Speaker John Boehner’s spokesman said that he “expects the White House to provide answers to members’ questions and take the lead on any whipping effort.” Majority Whip Kevin McCarthy (R-Calif.), whose aides and...