House Republicans were planning to pass a spending bill stacked with his campaign promises, including money to build his border wall with Mexico.

But an internal House Republican fight over transgender troops was threatening to blow up the bill. And House GOP insiders feared they might not have the votes to pass the legislation because defense hawks wanted a ban on Pentagon-funded sex reassignment operations — something GOP leaders wouldn’t give them.

They turned to Trump, who didn’t hesitate. In the flash of a tweet, he announced that transgender troops would be banned altogether.