If you want to read the tea leaves (why not?) these latest moves seem designed to cozy Trump with the establishment GOP. Military action, defend Fox News' cash cow, taking incompetent people off the NSC (yeah OK Rick Perry joined but look at his position). I suspect whatever evidence traces back to Russian ties Bannon to the whole thing. He's cutting that weight now in anticipation of being able to say "I had nothing to do with that stuff," and he's making allies in order to survive that impending ordeal. Hell, Marco Rubio is running around telling people Trump made the right call. If you want to get super crazy, you could argue he's getting ready to pivot from alt-right crazy to mainstream GOP, but I'm not quite ready to believe that yet.