Trump administration officials are facing scrutiny from Congress for their role in the 2016 presidential election.
But one lawmaker who has long criticized the Trump administration is seeking answers for his own involvement in the affair.
The House Intelligence Committee is probing Russian meddling in the U.S. election and whether Trump associates colluded with Russia to influence it.
The committee is also looking into whether Trump campaign officials coordinated with Russia.
Sen. Mark Warner, D-Va., chairman of the panel, said in a statement Monday that he has requested a briefing on the Trump associates involvement with Russia and how they were involved.
“My request for a briefing is not limited to what we have heard publicly.
I have also requested a detailed briefing on all contacts with Russian officials, including any information on Trump campaign associates or others who might have communicated with Russian operatives,” Warner said.
The committee will also interview former national security adviser Michael Flynn and former Trump campaign chairman Paul Manafort.
Warner also asked the Justice Department for documents related to the Russia probe, and he has subpoenaed Flynn’s financial records and Manafort’s financial disclosure forms.
The president has repeatedly denied any collusion with Russia, and his campaign has also denied collusion with the Kremlin.
“I don’t believe there was collusion,” Trump said last week.
“I think there was a lot of bad things going on, but we have to be very careful, because the Russians are after us, and we have no choice but to defend ourselves.”
The president also denied that his campaign or associates collude with Russia in the election.
He also has repeatedly said he has not met with the Russian president.
“The president and I have never spoken to the Russians,” he said last month at a press conference.
“That is not true.
We’ve never met, and I would not even say have spoken with the Russians.
But I have talked to lots of other people, I’ve talked to the president, I think he’s very smart.”
Trump has repeatedly accused the Obama administration of lying about his contacts with the Russia’s President Vladimir Putin.
The White House has also disputed that the president or his associates ever had contacts with Russians.