AP Photo/Patrick Semansky) Republican presidential nominee Donald Trump leaves following the third presidential debate with Democratic presidential nominee Hillary Clinton at UNLV in Las Vegas, Wednesday, October 19, 2016. I f it wasn't clear before Wednesday night's debate, it should be obvious now that Donald Trump is no longer seriously running for president. He is using his campaign to become the leader of what he calls “our movement”—a white supremacist, nativist, and nationalist crusade—to boost his ego, settle scores (including with many Republicans), and make it impossible for Hillary Clinton to govern. He intends to become America's first celebrity demagogue. For at least the past month, Trump had realized that he is going to lose the race for president on November 8. Indeed, every day, it looks more and more likely that Clinton will beat him by landslide margins in both the popular vote and the Electoral College. If he were still running for president, and trying to win 270...