But some experts remain opposed to U.S. action in Syria.
“Q: What should the US do when a rogue regime supported by terrorists uses WMD in a war against other terrorists? A: Stay out,” Northeastern University professor Max Abrahms tweeted on Monday.
War watchers in Washington and across the globe are searching for indicators on when Obama might strike and how that would be carried out. One sign will be when the commander in chief or his senior national security aides brief top lawmakers about their strike plans.