- Tag results for Michael Flynn
McMaster joined the administration in February last year, replacing Michael Flynn, who has since been indicted by Robert Mueller, who is investigating Russia's role in Trump's election.
Senators had questioned whether she knew about conversations between Russia's ambassador to Washington Sergey Kislyak and former national security advisor Michael Flynn in 2016.
The request is part of an investigation by special counsel Robert Mueller into Russian interference in the 2016 presidential election that brought Trump to the office.
Donald Trump's aide Flynn gave go-ahead to Russia for Middle East nuclear project, says whistleblower
The allegations posed new troubles for Flynn, who left the White House last February after barely three weeks and pleaded guilty last week to lying to the FBI in the Russia election meddling probe.
Trump insisted he and his campaign had not colluded with Moscow in the election, and shifted blame on the Justice Department and rival Hillary Clinton.
Flynn pleaded guilty to lying to the FBI over his contacts with Russia, a dramatic escalation of the sprawling investigation into possible collusion between Donald Trump's campaign team and Moscow.
In a series of tweets, Trump said that "nothing happened" to Hillary who lied many times to the FBI while General Flynn lied to the agency and his life is destroyed.
Flynn pleaded guilty Friday to lying to the FBI about contacts he had with the Russian ambassador. Trump said he fired Flynn because he lied to the vice president and the FBI about those dealings.
President Donald Trump insisted again that there no collusion between his campaign and Russia during his bid for the White House.
Trump abruptly fired Comey in May as he was leading a federal probe into possible collusion with a covert Russian effort to sway the 2016 US election in the Republican candidate's favor.
"I recognize that the actions I acknowledged in court today were wrong, and, through my faith in God, I am working to set things right," Flynn said in a statement.
The 57-year-old Flynn was one of the most prominent military veterans to endorse Trump's campaign.
Flynn has been charged with lying to investigators over his discussions with his Russian contacts regarding US sanctions being imposed on Moscow during Obama's government.
Flynn was forced to resign as national security adviser in February after White House officials concluded that he had misled them about the nature of his contacts.