As Donald Trump delivered his presidential inaugural address last January, his national security adviser, Michael Flynn, told a former business associate in text messages that a private plan to build nuclear reactors in the Mideast was "good to go" and that USA sanctions hobbling the plan would soon be "ripped up", a whistleblower told congressional investigators.
According to The Wall Street Journal, he also discussed the nuclear plan with Trump's son-in-law Jared Kushner and a close friend of the president, Thomas Barrack.
The whistleblower said that Copson quickly displayed what he claimed to be a text message from Flynn that appeared to have been sent during Trump's inauguration speech.
In his letter, Mr. Cummings also said that his staff had been in consultations with Mr. Mueller's team, which brought the criminal charge against Mr. Flynn. "This is going to make a lot of very wealthy people".
The letter said that if this witness account is accurate, Mr Trump's national security adviser "was trying to manipulate the course of global nuclear policy for the financial gain of his former business partners".
Cummings detailed the whistleblower's allegations in a letter to committee chairman Trey Gowdy, R-S.C., and urged Gowdy to authorize subpoenas to Flynn and his business associates to learn more about his efforts.
Cummings said he was first contacted by the whistleblower last June, but suggested that his account had remained under wraps while Robert Mueller, the special counsel investigating Russian meddling, was investigating Flynn.
Cummings said the whistleblower, whom he did not identify in the letter, "fears retaliation", but would speak with Gowdy if he agrees to protect the whistleblower's identity. Mr. Cummings said that Mr. Gowdy should subpoena Mr. Flynn, Mr. Copson and four others to testify before the panel.
Today, I am writing to inform you about a whistleblower who has come forward with evidence that Lt.
Mr. Gowdy and Mr. Cummings have a long history of clashing publicly over politically charged investigations.
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.
During the conversation, Mr. Copson told the whistle-blower that "this is the best day of my life" because it was "the start of something I've been working on for years, and we are good to go". The witness could not read the text, but he saw that the time stamp was 12:11 p.m., according Cummings's letter.
"These grave allegations compel a full, credible, and bipartisan congressional investigation", Mr Cummings wrote in the letter to Mr Gowdy, a South Carolina Republican, which outlines the information provided by the whistle-blower. Copson told the whistleblower, according to the Cummings letter, that Flynn would ensure the sanctions were withdrawn.
ACU Strategic Partners issued a statement on Wednesday saying, "No member of ACU received any communication in any form from General Flynn during the presidential campaign, the presidential transition, the inauguration, the period following the inauguration when General Flynn served as national security adviser or subsequent to General Flynn's resignation".