Listen to the replay and you'll see that you're mistaken.
Hunter said if there's time, it would be right to go to Congress, but for a fleeting target, the President must make the call, with or without assistance of our allies.
YOU need to listen to the replay, not me. Since Congress knows, we have TIME (as Hunter said), and that would be the instance where he would contend the Congress has to give approval under the War Powers Act. That's EXACTLY what he said, and he will regret having ceded power to the Congress because they (Democrats) will either claim the President mis-represented the facts (and did act without approval) OR, that the President CANNOT take action without approval because they knew ahead of time. There's no getting away from what he committed, and now he has to deal with it, and try to spin his way out.