In a letter from Rep. Elijah Cummings (D-Md.) to Rep. Trey Gowdy (R-S.C.), the chairman of the House Oversight Committee, Cummings claims the whistleblower said Flynn messaged a former business colleague, whom he worked with on a project with Russian Federation to "build nuclear power plants in the Middle East", that the plan was "good to go" because the sanctions would be "ripped up" as one of Trump's first acts in office.
The whistleblower alleged that the businessman boasted about the contents of the text from Flynn, calling it "the best day of my life", according to a detailed account of the alleged incident laid out in a letter from Rep. Elijah Cummings, the ranking Democrat on the House Oversight committee, to Chairman Trey Gowdy, a Republican, and shared with ABC News.
Flynn attempted to "manipulate the course of worldwide nuclear policy for the financial gain of his business partners", and assured a business partner the United States would relax sanctions once he worked in Trump's White House, Cummings wrote to House Oversight Chairman Trey Gowdy, R-South Carolina.
"I believe the American people want Congress to hold President Trump and his administration accountable", Cummings wrote, "and they are exhausted of Republicans in Congress putting their heads in the sand when faced with credible allegations of grave abuses". Congress later passed a bipartisan measure that placed new sanctions on Russian Federation, a bill that Trump reluctantly signed in August.
The message said the project was 'good to go.' It continued that Copson should contact colleagues to 'let them know to put things in place.' The whistleblower could not read the text of the message, but said the timestamp said 12:11 pm, meaning just minutes after Donald Trump assumed the presidency.
Cummings wrote that Mueller's office had asked him to hold back the information until "they completed certain investigative steps" - which apparently have now been concluded.
The White House aide was said to have been referring to plans by a consortium of US, Russian and French companies to build and operate 45 nuclear power plants in Saudi Arabia and other Arab countries. Copson is the managing director of ACU Strategic Partners, a Washington-based company that Flynn said he advised from April 2015 through June 2016, according to a financial disclosure he filed this August.
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"Mike has been putting everything in place for us", the whistleblower claims Copson said.
Flynn's attorney did not immediately respond to a request for comment.
Cummings told Gowdy in his letter that he found the witness "authentic, credible and reliable". He also lied when he said he did not recall a follow-up conversation with the ambassador, who said that "Russia had chosen to moderate its response to those sanctions as a result of Flynn's request". Flynn, a retired US Army lieutenant general, pleaded guilty in federal court last week to one count of making false statements to the FBI and is now a cooperating witness in special counsel Robert Mueller's probe into possible coordination between Trump's campaign and Russian intermediaries during the 2016 election.
Cummings has argued that the Flynn plea deal should alleviate that concern.
Cummings did not identify the whistleblower.