Former national security adviser Michael Flynn told FBI agents that he did not discuss sanctions against Russia with the country’s ambassador prior to President Trump’s inauguration — contradicting information gathered by U.S. intelligence agencies, The Washington Post reported Thursday.

The denial could put Flynn at risk of a legal charge — lying to the FBI is a felony — but the decision to prosecute would rest with Trump's Justice Department. The Post's report cites current and former officials.

Attorney General Jeff Sessions Jefferson (Jeff) Beauregard SessionsTrump's policies on refugees are as simple as ABCs Ocasio-Cortez, Velázquez call for convention to decide Puerto Rico status White House officials voted by show of hands on 2018 family separations: report MORE has so far rebuffed calls that he recuse himself from any investigation involving contact between Trump associates and Russia.

Flynn stepped down Monday night following revelations that he misled Vice President Pence about the contents of a series of calls to Russian Ambassador Sergey Kislyak.

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For weeks, he had publicly claimed that the subject of sanctions did not come up.

On Jan. 26, two days after the FBI's interview with Flynn, then-acting Attorney General Sally Yates informed White House counsel Douglas McGahn about the true contents of the call, warning him that officials were concerned Flynn could be blackmailed by Russia over the discrepancy.

The transcripts of the call have become a fierce point of contention on Capitol Hill, where the House and Senate Intelligence Committees are both investigating Russian interference in the 2016 election — including contact between campaign officials and the Russian government.

House Minority Leader Nancy Pelosi (D-Calif.) and Intelligence Committee ranking member Adam Schiff Adam Bennett SchiffOvernight Defense: Top admiral says 'no condition' where US should conduct nuclear test 'at this time' | Intelligence chief says Congress will get some in-person election security briefings Overnight Defense: House to vote on military justice bill spurred by Vanessa Guillén death | Biden courts veterans after Trump's military controversies Intelligence chief says Congress will get some in-person election security briefings MORE (D-Calif.) have demanded a full briefing on the matter from the Director of National Intelligence, including unredacted copies of the transcripts, by the end of the month.

In the Senate, the leaders of the Judiciary Committee — Chuck Grassley Charles (Chuck) Ernest GrassleySenate Republicans signal openness to working with Biden Senators offer disaster tax relief bill Trump spikes political football with return of Big Ten season MORE (R-Iowa) and Dianne Feinstein Dianne Emiel FeinsteinSenators offer disaster tax relief bill Democrats back away from quick reversal of Trump tax cuts Congress must save the Postal Service from collapse — our economy depends on it MORE (D-Calif.) — have also demanded a briefing and copies of the transcripts from Sessions and FBI Director James Comey.

Trump on Monday defended the embattled former general, arguing that he was simply "doing his job" by making the phone calls to Russia.

"Mike was doing his job. He was calling countries and his counterparts. So, it certainly would have been OK with me if he did it. I would have directed him to do it if I thought he wasn't doing it," Trump said.

Flynn was fired "because of what he said" to Vice President Mike Pence Michael (Mike) Richard PenceControversial CDC guidelines were written by HHS officials, not scientists: report Former DeVos chief of staff joins anti-Trump group Scott Walker helping to prep Pence for debate against Harris: report MORE about the contents of the call, Trump said.

Updated at 7:38 p.m.