Hence the reason he’s backing off his “red line” tough guy act.

Via Weekly Standard:

. . . The NBC host asked, “Would you act without Congress? The answer could be yes, no, or I haven’t decided.”

“I think it’s fair to say that I haven’t decided. I am taking this vote in Congress and what the American people are saying very seriously. Because if you ask somebody, you know, I read polls like everybody else. And if you ask somebody, if you ask Michelle do we want to be involved in another war, the answer is no.”