Citing two people briefed on the request the Washington Post reported that the Trump administration received a letter from the Senate panel seeking all documents, emails and telephone records last week.
This marked the first time the Trump campaign organization has been drawn into the committee’s investigation into Russian interference in the presidential election.
In addition to the request made of the administration dozens of former campaign staffers are expected to be contacted to ensure they are aware of the request.
The letter was signed by Republican Senator Richard Burr, the committee’s chairman, and Senator Mark Warner, its top Democrat, according to the Post, who declined to comment any further on the matter.
The Senate panel's investigation is among several in Congress into Russian interference in the election but separate from the probe into the matter being led by a special counsel Robert Mueller who was appointed last week by the Justice Department.
Trump’s campaign committee, which is based at Trump Tower in New York, is now led by Michael Glassner, a former deputy campaign manager, and John Pence, a nephew of Vice President Mike Pence.