Sen. Carl LevinCarl Milton LevinListen, learn and lead: Congressional newcomers should leave the extremist tactics at home House Democrats poised to set a dangerous precedent with president’s tax returns The Hill's 12:30 Report — Sponsored by Delta Air Lines — White House to 'temporarily reinstate' Acosta's press pass after judge issues order | Graham to take over Judiciary panel | Hand recount for Florida Senate race MORE (D-Mich.) demanded the CIA declassify a Bush administration cable on the invasion of Iraq.

On the Senate floor Thursday, Levin asked Central Intelligence Agency (CIA) Director John BrennanJohn Owen BrennanWebb: Questions for Robert Mueller A brief timeline of Trump's clashes with intelligence director Dan Coats Trump critic Brennan praises his Iran decision: I 'applaud' him MORE to release a cable on the George W. Bush administration’s campaign to build public support for the Iraqi invasion.

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“The American people deserve to know the whole truth about this episode,” said Levin, who serves as chairman of the Senate Armed Services Committee. “I have renewed my request to declassify the entire cable.”

Levin said his latest effort was prompted by new information that the Czech Republic was pressured into supporting the U.S. assertion that Iraq had weapons of mass destruction — it was later discovered that it didn’t.

Levin voted against the Iraq War because he said there wasn’t enough evidence to justify the invasion.

Levin’s comments come as Brennan is dealing with the release of the report on the CIA’s detention and interrogation report that showed the agency used torture during the Bush administration.

Some lawmakers have called for Brennan’s resignation over the matter.