The leaders of the Senate Intelligence Committee have sent a request to the Treasury Department’s financial crimes unit for any information on President Trump and his top aides, CNN reported Tuesday.

“We’ve made a request, to FinCEN in the Treasury Department, to make sure, not just for example vis-a-vis the president, but just overall our effort to try to follow the intel no matter where it leads,” Sen. Mark Warner (Va.), the panel’s top Democrat, told CNN.

“You get materials that show if there have been, what level of financial ties between, I mean some of the stuff, some of the Trump-related officials, Trump campaign-related officials and other officials and where those dollars flow — not necessarily from Russia.”

{mosads}Warner said the request was made in conjunction with the panel’s chairman, Richard Burr (R-N.C.). Burr’s office did not immediately respond to The Hill’s request for comment.

The request is part of the panel’s broader investigation into Russian meddling in the 2016 U.S. presidential election and any potential ties between the Trump campaign and Moscow.

Warner told CNN that he will block Trump’s nominee for the Treasury Department’s undersecretary for terrorism and financial intelligence, Sigal Mandelker, until the Intelligence panel gets the information it requested. 

“Chairman Burr and I requested that information. Until we get it, I’m not going to support the administration’s nominee for undersecretary of Treasury finance, for terrorism and finance, because they owe us these documents first,” Warner said.

The Intelligence Committee also sent requests to four former Trump campaign associates on Friday asking them to turn over emails and other records of communication with Russians.