Down at the courthouse, the kind of story Donald J. Trump is peddling is laughingly called the some-other-dude-done-it defense. Among the president’s 23 (!) separate denials that his presidential campaign “colluded” with Russia during the 2016 presidential campaign during a half-hour New York Times interview was this preposterous line: “I actually think it’s turning to the Democrats because there was collusion on behalf of the Democrats. There was collusion with the Russians and the Democrats. A lot of collusion…starting with the dossier.” The other dude, in Trump’s addled mind, being “Crooked Hillary.” She’s the one that conspired with Vladimir Putin!