A spokesman for former President Barack Obama issued on Tuesday a rare rebuke of President Trump, calling Mr. Trump’s pledge to use the Justice Department to go after his predecessor for treason “ridiculous and a weak attempt at distraction.”

Trump called unabating interest in sex offender Jeffrey Epstein a “witch hunt” and insisted that it’s his predecessor who deserves more scrutiny.

Obama's debt to Trump in the current president's mind? That the U.S. Supreme Court ruled last year that presidents have immunity for official acts.