Congressional committees investigating Russian interference in the 2016 presidential election have sought information from more Trump associates and U.S. officials.
On Tuesday, the top Democrat on the House Oversight Committee requested documents, communications and other records from both the director of national intelligence and the National Security Agency's director.
Rep. Elijah Cummings' request cites a Washington Post report published last week that claims President Trump asked Dan Coats and Adm. Mike Rogers to "publicly deny the existence of any evidence of collusion."
The report, which cites four anonymous sources, said both Coats and Rogers declined Trump's request. An unnamed spokesperson said the White House would not confirm or deny that Trump made the request.
Coats was asked about the report when he testified before the Senate Armed Services Committee the day after the Post published the report. He wouldn't comment.
Trump's longtime attorney, Michael Cohen, said Tuesday he has declined an invitation from the House and Senate intelligence committees to provide information.
But it appears fired national security adviser Michael Flynn will provide some business documents to the Senate Intelligence Committee, according to a report published Tuesday by the Associated Press.
Just last week, it was reported Flynn invoked the Fifth Amendment, refusing to comply with a subpoena issued by the same committee.
Also on Tuesday, former Trump campaign senior adviser and former special assistant to the president Boris Epshteyn confirmed the House Intelligence Committee asked him to voluntarily provide information. He is now chief political analyst for Sinclair Broadcast Group, which owns local television stations.