READ: Susan Rice's email discussing Michael Flynn and Russia

The Trump administration on Tuesday declassified an email that former national security adviser (NSA) Susan Rice sent herself about a meeting discussing "sensitive information related to Russia" and her incoming successor, Michael Flynn.

The email, which Rice sent the day of President TrumpDonald John TrumpBiden says his faith is 'bedrock foundation of my life' after Trump claim Coronavirus talks on life support as parties dig in, pass blame Ohio governor tests negative in second coronavirus test MORE's inauguration, describes a Jan. 5, 2017, Oval Office meeting between herself, former President Obama, former Vice President Joe BidenJoe BidenBiden says his faith is 'bedrock foundation of my life' after Trump claim Biden clarifies comments comparing African American and Latino communities Kanye West may have missed deadline to get on Wisconsin ballot by minutes: report MORE, former FBI Director James ComeyJames Brien ComeyTrump: Yates either lying or grossly incompetent Yates spars with GOP at testy hearing Trump knocks Sally Yates ahead of congressional testimony MORE and former Deputy Attorney General Sally YatesSally Caroline YatesTrump: Yates either lying or grossly incompetent The Hill's Morning Report - Presented by the Air Line Pilots Association - Key 48 hours loom as negotiators push for relief deal Yates spars with GOP at testy hearing MORE.

"Comey said he does have some concerns that incoming NSA Flynn is speaking frequently with Russian Ambassador [Sergey] Kislyak. Comey said that could be an issue as it relates to sharing sensitive information," Rice wrote in the email, which was formerly classified as "top secret."

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"President Obama asked if Comey was saying that the NSC [National Security Council] should not pass sensitive information related to Russia to Flynn. Comey replied 'potentially,'" she continued. "He added that he has no indication thus far that Flynn has passed classified information to Kislyak, but he noted that 'the level of communication is unusual.'"

Sen. Ron JohnsonRonald (Ron) Harold JohnsonGOP chairmen hit back at accusation they are spreading disinformation with Biden probe Unemployment debate sparks GOP divisions Tensions flare as GOP's Biden probe ramps up  MORE (R-Wis.), who obtained the email through the Justice Department, emphasized the "significance of the meeting" described in the email to the probe by GOP lawmakers into the handling of the investigation into Russia's election interference.

Flynn, who pleaded guilty in 2017 to lying to FBI agents as a consequence of former special counsel Robert MuellerRobert (Bob) MuellerCNN's Toobin warns McCabe is in 'perilous condition' with emboldened Trump CNN anchor rips Trump over Stone while evoking Clinton-Lynch tarmac meeting The Hill's 12:30 Report: New Hampshire fallout MORE's investigation into Russia's election interference, has been a key player in the GOP's probe. The Justice Department has since made the controversial recommendation to drop the case against Flynn.

Read the declassified email below.