WATCH: "CIA is Lying," Says Dem Senator

In a 48-minute speech to the Senate, likely his last, outgoing Sen. Mark Udall (D-Col.), who was defeated in last month's election, blasted President Obama and his White House for being untruthful about the CIA's use of torture and other interrogation practices. He called on the president to "purge" his administration of officials involved with approving, overseeing, and participating in CIA torture and demanded, as he's done before, that the CIA director, John Brennan, resign.

"Director Brennan and the CIA today are continuing to willfully provide inaccurate information and misrepresent the efficacy of torture," Udall said. "In other words, the CIA is lying."

Watch the whole speech below: