It was a fleeting moment, but one that captured Mr. Trump’s reluctance to part ways with the final explosive act of his presidency, even in a general election in which it offers little political upside.For years, Mr. Trump has helped craft an alternate history of that day, one in which the violent attack was a “love fest,” the jailed rioters were “hostages” and their prosecution was a part of a larger story of persecution — of both Mr. Trump and his supporters — that has been at the core of his argument for a return to the presidency.But as he...