John O. Brennan
Trump's tweet follows a lengthy interview in which Brennan harshly criticized Trump.
The president is compromising our national security to fulfill his revenge fantasies.
The rare rebuke comes after the president revoked the security clearance of former CIA Director John Brennan.
Officials told The Washington Post Trump believes he looked strong after taking away John Brennan's security clearance.
WHAT'S HAPPENING
Having access to secret information is a valuable asset.
“I would consider it an honor if you would revoke my security clearance as well," William McRaven wrote.
The former CIA director, whose security clearance was revoked by Trump a day earlier, hit back in an op-ed in The New York Times.
Sarah Huckabee Sanders says Brennan, a vocal critic of the president, has exhibited "erratic conduct and behavior."
The news comes amid Trump's baffling back-and-forth on Russian interference.
Rep. Trey Gowdy refused to compel his own witness to answer basic questions.