President Trump’s political organization has received a letter from the Senate Intelligence Committee to share any and all documents it has related to Russia, according to a report Friday.

The panel, led by Chairman Richard Burr, R-N.C., and ranking member Mark Warner, D-Va., is conducting one of several investigations into Russian meddling in the 2016 election. Burr and Warner signed off on a letter sent last week to the campaign committee’s treasurer, The Washington Post reported, citing two people familiar with the request.