Of course he doesn’t need approval in his mind for anything he does…..
Check it out:

President Obama told congressional leaders from both parties that he does not need their approval to launch additional military action against the Islamic State (ISIS), but it would be preferable if they did provide it.

“The President told the Leaders that he has the authority he needs to take action against ISIL in accordance with the mission he will lay out in his address tomorrow night,” the White House said in a readout of a summit held Tuesday with congressional leaders on the subject.