Can Harris Beat Trump? VPs Tend to Have Good Odds.

The increasingly likely Kamala Harris–versus–Donald Trump presidential contest would be one for the history books. There’s never been anything exactly like it, to be clear. Trump’s three consecutive presidential nominations are pretty unusual, having happened just twice before (with Grover Cleveland, from 1884 to 1892, and FDR, from 1932 to 1944). And Harris represents a whole batch of unusual distinctions. She will be the first Black woman or Asian-American...