People in both parties will be debating the contours of Donald Trump’s comeback presidential victory over Kamala Harris for a good while. Certainly among Democrats, this close but conclusive defeat will be interpreted as flowing from a host of party weaknesses and candidate and campaign mistakes. And Republicans, as winners do, will likely over-interpret their success as representing a watershed victory that will turn into governing coalition that will last for decades.
The simplest explanation, though, may be the most compelling: This was a classic “change” election in which the “out” party had an advantage that the governing party could not overcome. Yes, the outcome was in doubt because Democrats managed to replace a very unpopular incumbent with an interesting if untested successor, and also because the GOP chose a rival whose constant demonstration of his own unpopular traits threatened to........