Donald Trump insisted Thursday that “the reporter” who published the leaked Supreme Court draft ruling overturning Roe v. Wade be jailed until the source of the leak can be determined.

Though Trump did not name any particular individual or publication, the draft majority opinion was first reported on in Politico last May by journalists Josh Gerstein and Alexander Ward. Trump also called for throwing “the publisher and editor” behind bars.

“Stop playing games, this leaking cannot be allowed to happen,” the former president wrote on his social network Truth Social. “It won’t take long before the name of this slime is revealed!”

The Supreme Court announced in a report published earlier Thursday that its eight-month investigation has been unable to identify the source of the leak. It was the first Supreme Court opinion ever to have been made public before the court announced it.

Some have speculated that Justice Samuel Alito’s explosive draft opinion may have been leaked by a justice or conservative law clerk, potentially so the public had time to adjust to the radical, controversial change in women’s reproductive rights before the actual opinion was issued.