The Republican National Committee (RNC) paid nearly half a million dollars to a law firm that represented clients, including former White House communications director Hope Hicks Hope Charlotte HicksSenate intel leaders said Trump associates may have presented misleading testimony during Russia probe: report Cuomo turned down Trump invitation to participate in April press briefing: report Trump shakes up White House communications team MORE, in the ongoing Russian investigations, The Washington Post reported on Sunday.

The RNC paid Trout Cacheris & Janis $451,780 for its services, according to a federal filing.

Hicks hired the firm’s founder, Robert Trout, to be her personal attorney last September, according to reports.

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Three of the firm’s lawyers represented other people besides Hicks in special counsel Robert Mueller Robert (Bob) MuellerCNN's Toobin warns McCabe is in 'perilous condition' with emboldened Trump CNN anchor rips Trump over Stone while evoking Clinton-Lynch tarmac meeting The Hill's 12:30 Report: New Hampshire fallout MORE’s investigation, as well as the investigations by the House and Senate Intelligence committees.

Mueller and the House and Senate committees interviewed Hicks, one of Trump’s closest confidantes, earlier this year.

The Federal Election Commission report filed Sunday marks the first public disclosure of the RNC’s payments since Hicks hired Trout, according to the Post.

The RNC began using a pool of money it had gathered for election recounts and other issues to pay for Trump and his associates’ legal fees linked to the Russia investigations, the Post reported.

In February, a legal defense fund was created to pay for such expenses, but it is still unclear if the fund has money due to a lack of public disclosure.

The RNC raised $12.7 million in April for a total of $173.9 million in the 2018 cycle, according to the Post. The Democratic National Committee raised $7.8 million in April and $92.2 million for the 2018 cycle.

However, outside groups supporting Democrats outraised those supporting Republicans in April.