Fired former national security advisor Mike Flynn exalted that a nuclear deal involving Russian Federation was "good to go" just minutes after President Trump took the oath of office, House Oversight panel Democrats said based on a whistleblower's claims.
The key to the plan's success was ending economic sanctions on Russian Federation, which would supply the reactors.
Cummings said that the whistleblower's allegations raise concerns that Flynn improperly aided the nuclear project after joining the White House as one of Trump's top security officials.
The letter says Flynn blamed Obama for having 'f***** everything up in my nuclear deal with the sanctions'.
"Our committee has credible evidence that President Trump's National Security Advisor sought to manipulate the course of worldwide nuclear policy for the financial gain of his former business partners", wrote Cummings.
It is alleged that while sitting a few yards away from the podium where President Trump was delivering his inaugural address on 20 January, Mr Flynn sent the texts to Alex Copson, managing partner of ACU Strategic Partners, a United States nuclear power consultancy. The investigators are searching for further evidence that Flynn lobbied from his government job as National Security Advisor for associates who had retained his consulting firm before the election. The memo was intended for Trump to sign, though there's no indication the President saw it, the Journal reported.
The revelation by Cummings suggests how much more information Flynn might have to share with Mueller. "I have spoken to this whistleblower, and I find this person to be authentic, credible, and reliable", Cummings wrote.
Flynn pleaded guilty to a charge in the criminal investigation into Russian collusion last week. White House lawyer Ty Cobb declined to comment on the allegation.
According to the account, the unnamed whistleblower ran into Copson at a party in Washington, D.C. on inauguration day.
"Mike has been putting everything in place for us", the businessman, Alex Copson, managing director of nuclear power promoter ACU Strategic Partners, allegedly told the whistleblower. "This is the start of something I have been working on for years, and we are good to go". Copson added that "this is going to make a lot of very wealthy people".
According to a letter by Rep. Elijah Cummings of Maryland, Copson then showed the whistleblower his phone, which contained a message from Flynn.
"Mr. Copson explained that Gen. Flynn was making sure the sanctions would be ripped up as one of his first orders of business and this would allow money to start flowing into the project", Cummings said, quoting the witness.
The new details suggest that President Trump and his aides not only were amenable to new negotiations with Russian Federation about its bilateral relationship with the U.S - despite its attack on the 2016 presidential election - but had concluded by the time they took office that they would definitely void existing sanctions.
Flynn pleaded guilty Friday to lying to the Federal Bureau of Investigation during its probe of Russian interference in the presidential election, including about conversations with Russia's ambassador to the US about sanctions.
Mr Cummings wrote that he delayed releasing the letter at the request of Justice Department special counsel Robert Mueller until his team had "completed certain investigative steps".
He also requested subpoenas for Copson, Barrack and other officials linked to the nuclear scheme.
Cummings said the individual contacted his office and authorized him to make his account, but not his name, public.
Cummings has been critical of his Republican colleague Gowdy's leadership in their investigation of Flynn.
Cummings and Gowdy have long feuded over the direction of the Oversight Committee, and Gowdy appears unlikely to agree to the subpoena. He and Cummings jointly exposed details that Flynn had lied on his security clearance forms earlier this year, though Chaffetz later backed off the inquiry despite the Democratic demands.