The party’s leaders were afraid Trump would rage against them if they denied him the nomination; instead, he is raging against them for refusing to go to the mat for his caught-on-tape misogyny and pornographic boasts. They were afraid of infuriating his core voters by opposing him at the convention; instead, they are infuriating his core voters by keeping him at arm’s length in the election’s final stretch. They feared a war of Republican against Republican, conservative against conservative; they have one. They feared a turnout collapse, an inevitable defeat; they will most likely get both.

Above all, they feared the specter of a defeated Donald Trump railing against a corrupt convention bargain all through 2016 and beyond. So instead they will get Donald Trump railing against an establishment dolchstoss, a stab in the back, from the moment the polls close on Nov. 8 until he either wins the 2020 nomination or draws his dying breath.

History in its day to day is not a morality play. But sometimes there is a clear chastisement, a moment when the judgments of providence seem stark. And so it may be for the men who led the Republican Party into its Trumpian inferno.