“I think we will respond in a surgical way and I hope the president, as soon as we get back to Washington, will ask for authorization from Congress to do something in a very surgical and proportional way. Something that gets their attention, that causes them to understand that we are not going to put up with that kind of activity,” Sen. Bob Corker of Tennessee, the top Republican on the Senate Foreign Relations Committee, said on “Fox News Sunday.”

But Rep. Eliot Engel of New York, the ranking Democrat on the House Foreign Affairs panel, said President Barack Obama may not need to wait for congressional authorization.

“Congress needs to be involved but perhaps not initially,” Engel said. “Perhaps the president could start and then Congress needs to resolve it and assent to it. We cannot sit still. We’ve got to move and we’ve got to move quickly.”