The House Intelligence Committee sent a request for information to one of President Trump Donald John TrumpObama calls on Senate not to fill Ginsburg's vacancy until after election Planned Parenthood: 'The fate of our rights' depends on Ginsburg replacement Progressive group to spend M in ad campaign on Supreme Court vacancy MORE's former White House aides, ABC News reported Tuesday.

Boris Epshteyn, who previously served as Trump's assistant communications director for surrogate operations, said that he had received a list of questions from congressional investigators as part of their probe into Russian efforts to meddle in the 2016 election.

"Like many others, Mr. Epshteyn has received a broad, preliminary request for information from the House Intelligence Committee," Epshteyn's lawyer said in a statement to ABC News. "This is a voluntary request. Mr. Epshteyn has not been subpoenaed nor do we anticipate that he will be."

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"We have reached out to the Committee with several follow up questions and we are awaiting their response in order to better understand what information they are seeking and whether Mr. Epshteyn is able to reasonably provide it."

Epshteyn left his post in the Trump administration in March with little reason or warning, though he was said to be under consideration for other posts in the administration.

Epshteyn joined Sinclair Broadcasting Group last month as a political analyst.

The ongoing congressional and law enforcement investigations into Russian election meddling and possible collusion between the Trump campaign and Moscow have widened in scope recently.

The House Intelligence Committee on Tuesday sent a request for information to Trump's personal attorney, Michael Cohen Michael Dean CohenA huge deal for campaign disclosure: Trump's tax records for Biden's medical records Our Constitution is under attack by Attorney General William Barr Eric Trump says he will comply with New York AG's subpoena only after Election Day MORE, who has since said he will not comply with the request.

The Washington Post reported last week that Trump's son-in-law and senior adviser Jared Kushner Jared Corey KushnerAbraham Accords: New hope for peace in Middle East Tenants in Kushner building file lawsuit alleging dangerous living conditions Trump hosts Israel, UAE, Bahrain for historic signing MORE was also a person of interest in the FBI's probe, though that does not mean he is suspected of wrongdoing or will be charged with an offense.