Roll Call: “As the White House and congressional leaders woo votes to authorize military intervention in Syria, certain lawmakers serve as important bellwethers — and potentially critical components — to the math of 218.”

“Military action in Syria is, ultimately, a policy vote. But it is also, inescapably, a political one.”

“Voting against Syria could forever mar a Republican as soft on defense, just as voting for it could brand a Democrat a war hawk. And how members vote could play roles in leadership elections down the line. Elections could be won or lost and legacies built or dashed based on this vote — and lawmakers know it.”

The Washington Post has an updated whip count on the resolution.