President Donald Trump boards Marine One as he departs the White House in Washington, Nov.6, 2026. As Americans absorb a stunning new political reality, they face a gap between the time they effectively decided to be done with the president and the time he is actually done. (Alex Kent/The New York Times) By PETER BAKER In the days since his defeat, he has sounded like a man in denial. With his party still picking through the wreckage of a political earthquake, a seemingly oblivious President…