The subpoenas to associates of former national security adviser Michael Flynn are seeking business records, CNN said Tuesday.
CNN confirmed with people familiar with the matter that the U.S. Attorney’s Office in Alexandria, Va., issued the subpoenas in recent weeks.
The subpoenas are a significant escalation of the FBI’s broader investigation into possible ties between Russia and President Trump’s 2016 campaign. The news of subpoenas comes on the same night President Trump fired FBI Director James Comey.
The White House said Comey was fired at the recommendation of the Justice Department, but critics of the administration are questioning whether the action is related to the FBI's probe of Russian election interference and any possible ties between Trump's campaign and Moscow.