More likely he was fired.
Well yea, just like his “resignation” from his position at the WH actually he was fired. POTUS tried to let him bow out in dignity and even thanked him for his service on Twitter and wished him the best, KNOWING that he was leaking. POTUS still was trying to allow him to save face, and look what happened.
Don’t let anyone ever say POTUS is petty and vindictive. Only when he is pushed to be so. His graciousness with Bannon after knowing he was a leaker, and fired for it, still allowed him to pretend he resigned and publicly wished him well.