Here’s one theory: “What better way to recast yourself with the electorate than through a gripping, episodic fight for leadership? What could draw more people into politics than a must-watch nightly drama, with the fate of the nation at stake? I have to believe that Trump — a modern-day P.T. Barnum who feeds off the boring artifice of his adversaries — fears that spectacle more than anything. And in a political age in which familiarity breeds distrust, what could be more advantageous than choosing a nominee — preferably one from outside Washington — with only two months to campaign? Imagine the explosion of interest that would surround some fresh, non-octogenarian — Gretchen Whitmer, Gavin Newsom, Gina Raimondo, Josh Shapiro — during a 10-week barnstorming tour. How’s Trump going to handle that? Even Harris, for all her flaws as a political messenger, would benefit immensely from an open fight, should she ultimately triumph. It would reintroduce her as a unifier and a winner, and afford her a rare opportunity to commandeer the national stage.” washingtonpost.com/opinions/…