House Oversight and Government Reform Committee Chairman Trey Gowdy Harold (Trey) Watson GowdySunday shows preview: Election integrity dominates as Nov. 3 nears Tim Scott invokes Breonna Taylor, George Floyd in Trump convention speech Sunday shows preview: Republicans gear up for national convention, USPS debate continues in Washington MORE (R-S.C.) on Sunday said the courts are responsible for handling a complaint from a Trump transition team lawyer about special counsel Robert Mueller.

Kory Langhofer, counsel to Trump for America (TFA), wrote a letter on Saturday to two congressional committees claiming that Mueller's team improperly obtained thousands of emails from the General Services Administration (GSA), which managed President Trump Donald John TrumpBiden on Trump's refusal to commit to peaceful transfer of power: 'What country are we in?' Romney: 'Unthinkable and unacceptable' to not commit to peaceful transition of power Two Louisville police officers shot amid Breonna Taylor grand jury protests MORE's transition team's email accounts.

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A spokeswoman for Gowdy said Langhofer raised “specific legal issues” regarding claims of privileged information, adding that those matters should be handled in court, not Congress.

"To the extent the letter raises issues on how to improve subsequent transitions, the Committee takes the letter under advisement," the spokeswoman said in a statement provided to The Hill.

Langhofer's letter says the GSA “unlawfully produced TFA’s private materials, including privileged communications, to the Special Counsel’s Office,” according to Reuters.

The illegally obtained documents include “tens of thousands of emails," the letter adds.

Mueller’s office responded earlier Sunday, denying any wrongdoing.

“When we have obtained emails in the course of our ongoing criminal investigation, we have secured either the account owner’s consent or appropriate criminal process,” Peter Carr, a spokesman for the special counsel’s office, said in a statement to The Hill.

Some Republicans have in recent weeks seized on the news that Mueller fired a member of his team for sending anti-Trump text messages, arguing the special counsel's investigation is biased against the president.