When the president says "we will take over", and that "the shooting will start", that seems (to me) to be fairly authoritarian (right-leaning) rhetoric.

Our laws explicitly forbid the national military "taking over" in such situations -- the national guard (state military) is who is supposed to be deployed.

Wikipedia says: "In 2006, Congress passed the 2007 National Defense Authorization Act, which gave the president the authority to mobilize National Guard units within the U.S. without the consent of state governors."