an acquaintance of Roger Stone, former political advisor to President Donald Trump, confirmed that the Senate Intelligence Committee had convened Jérôme Corsi for documents and interviews.
The summons asks Corsi to appear on 6 February. He announced his intention to challenge it. His lawyer, Larry Klayman, said they were still evaluating how to respond.
The summons was first reported by The Hill.
A spokeswoman for the Senate Intelligence Committee declined to comment.
The committee asks Corsi to transmit communications, including through intermediaries, involving DCLeaks, Guccifer 2.0, WikiLeaks and one of its employees, Roger Stone, Peter Smith, Charles Johnson, the Ecuadorian government, Ted Malloch, Randy Credico, Steve Bannon. Alex Jones and Henry Greenberg.
He is also looking for any communication with Russia's Trump campaign or presidential transition; any attempt to search for stolen information related to the 2016 elections; and any communication on Russia's efforts to influence the 2016 election.
The committee also wishes to receive any communication related to harmful information about Hillary Clinton, such as e-mails about her health, the Clinton Foundation or John and Tony Podesta.
Finally, the committee would like Corsi to forward any communication relating to the ongoing investigation, with the exception of direct communications with committee employees or Corsi's lawyers. The committee also wishes to obtain copies of all files provided by Corsi to the special council or the FBI.