WASHINGTON, DC: March 20, 2017. As Congressional hearings begin on possible connections between the Trump presidential election bid and Russia, evidence has surfaced that sacked U.S. National Security Advisor Michael Flynn received US$11,250 from Volga-Dnepr in August 2015 as a speaking engagement fee.

Volga-Dnepr has an on-going contract with Boeing to support the manufacturer's global supply chain with 20 B747-8s and the provision of AN124-100 capacity.

General Flynn was fired by Trump in February for concealing information about his communications with Russian officials. Earlier this month he revealed he had been paid US$530,000 for lobbying work last year on behalf of a foreign government while advising presidential candidate Trump.

In a letter to Trump a member of the House Committee on Oversight and Government Reform, Representative Elijah Cummings, has asked whether Flynn fully disclosed his communications with, and payments from, Russian or any other foreign agents, as well as his payments from foreign sources.

This would have been a requirement as part of the security clearance and vetting process prior to Flynn's return to government.

In December 2015 the Russia Today (RT) television channel paid Flynn $33,750 (right) to speak at a gala in Moscow, during which he dined with Russian president Vladimir Putin, according to Cummings.

Flynn, who was a Trump campaign advisor before becoming National Security Advisor, "has dissembled regarding the source of these funds and has refused to disclose the amounts he was paid," Cummings wrote in his letter to Trump, the Department of Defense secretary James Mattis, and FBI director James Comey.

According to the Congressman, U.S. intelligence agencies have warned since 2012, when Flynn was serving as the director of the U.S. Defense Intelligence Agency, that RT is an instrument of the Russian government.

Cummings' letter also revealed a US$11,250 payment in October 2015 to Flynn from Kaspersky Government Security Solutions, founded by a former member of Russian military intelligence.

"I cannot recall any time in our nation's history when the president selected as his National Security Advisor someone who violated the Constitution by accepting tens of thousands of dollars from an agent of a global adversary that attacked our democracy," Cummings wrote to Trump.

"I also cannot recall a time when the president and his top advisers seemed so disinterested in the truth about that individual's work on behalf of foreign nations—whether due to willful ignorance or knowing indifference," he added.