The informant, Douglas Campbell, told congressional investigators on Wednesday that Moscow sent millions of dollars to the U.S. with the expectation that it would benefit the Clintons, while Hillary Clinton "quarterbacked a 'reset' in US-Russian relations" in her role as Secretary of State during the Obama administration, The Hill reported.

Key facts:

* Campbell participated in closed-door interviews with the Senate Judiciary, House Intelligence and House Oversight and Government Reform committees.

* Campbell said that Russian nuclear officials told him that Moscow hired an American lobbying firm, APCO Worldwide, because it was in a unique position to influence the Obama administration, Hillary Clinton in particular.

* Democrats are aggressively trying to discredit him but are having little success as "the FBI found Campbell’s undercover work valuable enough to reward him with a $50,000 check in 2016."

* Campbell says that the FBI told him that his work was "briefed to President Obama as part of his daily presidential briefing," which would mean that Obama was aware of the crimes committed by the Russian officials.

* The FBI forced him to pay $500,000 of his own money to Russian officials as bribes to facilitate his cover, and the bureau never reimbursed him despite their praise of his work and the fact that the ordeal was so stressful that he developed serious, life-threatening illnesses.

* Initially reports indicated that Campbell was threatened by the Obama administration in an attempt to silence him report before the 2016 election as they did not want this case hurting Hillary Clinton after then-Attorney General Loretta Lynch's Justice Department learned that he filed a lawsuit in a Maryland federal court. It was not immediately clear what the lawsuit was about, however, Sara Carter reports: "Campbell filed a lawsuit in Maryland federal court against the Russian nuclear entities asking for the return of the money he had to launder out of his own paychecks."

* "Russian and American executives implicated in the Tenex bribery scheme specifically asked him to try to help get the Uranium One deal approved by the Obama administration," The Hill noted.

* He provided documentation of the corruption and crimes taking place to help Russia to the Obama administration months before they made a series of decisions that directly benefited Vladimir Putin and the Russian government.

* He provided documentation to the Obama administration that showed that the Russian government was actively involved in trying to help Iran develop their nuclear capabilities years before the Obama administration implemented the now infamous Iran deal.

* He said that he was told by the FBI that the politics of the Obama administration overruled justice from taking place against the criminal activity that was happening.