The Trump campaign is due for a disclosure on Oct. 15.
The U.S. Federal Election Commission allows the use of private campaign funds to pay legal bills arising from being a candidate or elected official.
It was not clear how Trump’s legal costs related to the Russia probe would be allocated between the campaign and the RNC, one of the sources said.
Reuters could not determine how large a legal bill Trump has incurred to date from his lawyers on the Mueller investigation.
FILE PHOTO: U.S. President Donald Trump arrives at a campaign rally in Phoenix, Arizona, U.S., August 22, 2017.
Hillary Clinton, who ran a privately funded campaign, paid millions to campaign lawyers at Perkins Coie to handle routine legal matters, according to campaign filings.
A number of other current and former Trump staffers have also recently hired lawyers. »