Thank you for reading, and for the comment.
In the real world, Maybe, or Maybe Not, is debatable. In this fantasy tale, as POTUS he has more information as to what the Agency has done, and is doing with operations going on in the USA. They are not a nice organization at all. Very much like the Knights Templar mixed with the Spanish Inquisition, and a dose of Nazi-ism. However, they are sanctioned by the Vatican Accords, and while POTUS can't kick them out of the USA, he can mess with them. That's his motivation in this. Also, No one, not even the Agency will break the Accords. Bend it some, in the gray areas, but No one will break them. Too much at risk for both sides.