Trump told NBC News he's "not joking" about a third term. But GOP lawmakers said it can't be done without a near-impossible amending of the Constitution.

President Trump’s pick to be the chairman of the Joint Chiefs of Staff told senators during his confirmation hearing that he would give the president candid guidance and stay out of politics. But he also said he was willing to push back if asked to do something unconstitutional and suggested concern about recent messages sent by senior national security leaders over Signal.