More: Donald Trump wins, Republicans lose. The Indiana primaries on 5 May, in which five of seven Trump-backed candidates ousted stalwart conservative Republican state legislators who had refused his command to redraw congressional districts, has been the only victory Trump can claim recently. Indiana, happily for him, is not Iran. His appeal still prevails at least over the increasingly narrow band of Maga voters. But the persistence of Trump's domination is a sign of mounting haplessness. His victory is an augury of repudiation. Maga devotion is hardening in response to his dwindling popularity, a telltale reaction of true believers to a failed prophesy. The cult survives, the party withers.

On the same day the Indiana Republicans went down to defeat to sate Trump's vengefulness, a Democrat won a bellwether Michigan state senate seat by 20 points in a district that Kamala Harris carried by less than a point. The bell tolls for thee.

The Republicans have no instinct for separation from Trump, no will to stage an intervention, no ability to muster an ultimatum. They have been complicit in their captivity, co-conspirators in their demise.