Senate Armed Services Chairman John McCain, R-Ariz., said Sunday that Congress should not restrict the president's broad authority in authorizing the use of military force against ISIS, NBC News reported. "If we don't like what the commander-in-chief is doing, we can cut off his funds for doing so. But to restrain him in our authorization of him taking military action, I think frankly, is unconstitutional," McCain said on NBC's "Meet the Press." He added that preventing the president from acting against the militants "eventually leads to 535 commanders-in-chief," referring to the total number of members of Congress. McCain's comments came after the president announced Wednesday that he was asking Congress to vote to allow the use of U.S. military force against ISIS.