Rep. 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 lawmakers would do their due diligence on White House senior adviser Ivanka Trump Ivana (Ivanka) Marie TrumpThe Hill's 12:30 Report: Trump stokes fears over November election outcome Special counsel investigating DeVos for potential Hatch Act violation: report Trump, Biden vie for Minnesota MORE's use of a personal email account to conduct government business and voiced disapproval of President Trump Donald John TrumpSteele Dossier sub-source was subject of FBI counterintelligence probe Pelosi slams Trump executive order on pre-existing conditions: It 'isn't worth the paper it's signed on' Trump 'no longer angry' at Romney because of Supreme Court stance MORE's dismissal of any wrongdoing by his daughter.

"I am concerned anytime any president prejudges the outcome of an investigation," Gowdy said on CBS's "Face the Nation."

"Congress has a responsibility to make sure that the records and the Presidential Records Act is complied with, and that's true no matter who the person is," he added.

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Gowdy, chairman of the House Intelligence Committee, has written to the White House and reached out to Ivanka Trump's attorney following a Washington Post report that she used private email to conduct government business.

The Republican lawmaker noted that it's a crime to divulge classified information, but using personal email to conduct public business on its own is not, though it breaks with regulations.

.@TGowdySC on Ivanka Trump’s emails: Divulging secret information is a crime, using personal email for government business is not. pic.twitter.com/bGOAYPtxx6 — Face The Nation (@FaceTheNation) November 25, 2018

A lawyer for Ivanka Trump said she mainly used the personal account to handle logistics and scheduling matters.

President Trump, who spent much of the 2016 campaign demonizing Democratic presidential nominee Hillary Clinton Hillary Diane Rodham ClintonFox News poll: Biden ahead of Trump in Nevada, Pennsylvania and Ohio Trump, Biden court Black business owners in final election sprint The power of incumbency: How Trump is using the Oval Office to win reelection MORE's use of a private email server while she was secretary of State, insisted his daughter had done nothing wrong.

Prior to departing for Florida last week, the president dismissed reports of Ivanka Trump's personal email account usage as "fake news," and rejected comparison's to Clinton's case.

"She wasn’t doing anything to hide her emails," Trump told reporters.

House Democrats have said they will investigate Ivanka Trump's use of a personal email account to determine whether she violated federal law.