Earlier this week, they told Trump they were deeply troubled by the accounts in Woodward’s book and blamed Chief of Staff John Kelly for many of the leaks, an outside adviser close to them told me. “‘He’s destroying your presidency,’” Ivanka told her father, the outside adviser, who was briefed on the conversation, said. Their hunt for the author of the Times op-ed may bring them into the final chapter of their long-running feud with Kelly.

According to three sources, Jared and Ivanka floated a theory on Wednesday that Kelly could be behind the Times op-ed. Under this scenario, the sources said, the op-ed was written by Zachary Fuentes, the deputy chief of staff, at the direction of Kelly. Jared and Ivanka have told people they suspect this because Kelly is the only one with an ego so large as to have convinced himself that he’s saving the country from Trump, which was one of the op-ed’s principal arguments. On Wednesday night, Ivanka and Jared laid out for Trump the theory that Fuentes might be the author, an outside adviser with knowledge of the conversation told me. (A White House spokesperson said this is “untrue.” Fuentes has denied writing the piece.)