A pair of House Democrats on Thursday called on acting White House chief of staff Mick Mulvaney Mick MulvaneyMick Mulvaney to start hedge fund Fauci says positive White House task force reports don't always match what he hears on the ground Bottom line MORE to revoke Jared Kushner Jared Corey KushnerAbraham Accords: New hope for peace in Middle East Tenants in Kushner building file lawsuit alleging dangerous living conditions Trump hosts Israel, UAE, Bahrain for historic signing MORE's security clearance.

The letter to Mulvaney from Democratic Reps. Don Beyer (Va.) and Ted Lieu Ted W. LieuThe spin on Woodward's tapes reveals the hypocrisy of Democrats Larry Kudlow defends response to coronavirus: Trump 'led wisely' Lieu on Trump 'playing it down' on coronavirus: 'This is reckless homicide' MORE (Calif.) came after NBC News reported last week that two career White House security specialists rejected Kushner's application for a top-secret security clearance after an FBI background check raised concerns about potential foreign influence. Their supervisor overruled them and approved the clearance anyway, according to NBC.

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"We urge you to immediately revoke the security clearance of Senior White House Advisor Jared Kushner, and to comply with past and future oversight requests from Congress related to security clearances, information security, and other matters of national security," Beyer and Lieu wrote.

They further accused the administration of concealing information from Congress about security clearances.

"The ongoing refusal of the Administration to abide by longstanding security clearance processes, coupled with its unwillingness to explain its actions to Members of Congress, increasingly seems like a coverup," they wrote.

Sources told NBC that Kushner, President Trump Donald John TrumpBubba Wallace to be driver of Michael Jordan, Denny Hamlin NASCAR team Graham: GOP will confirm Trump's Supreme Court nominee before the election Southwest Airlines, unions call for six-month extension of government aid MORE's son-in-law and White House adviser, was one of at least 30 cases in which the official overruled career security experts and approved clearances for incoming Trump administration officials. The sources said that the number of decisions overruling the rejections was unprecedented.

Beyer and Lieu have previously called for Kushner's security clearance to be revoked. They did so in 2017, after reports emerged that Kushner and his wife, Ivanka Trump Ivana (Ivanka) Marie TrumpSpecial counsel investigating DeVos for potential Hatch Act violation: report Trump, Biden vie for Minnesota Trump luxury properties have charged US government .1M since inauguration: report MORE, used private email for official business and missed deadlines for reporting financial assets to the Office of Government Ethics.

Beyer and Lieu's latest call comes as Democrats on the House Oversight and Reform Committee investigate the security clearance process in the Trump administration.

House Oversight Committee Chairman Elijah Cummings Elijah Eugene CummingsBlack GOP candidate accuses Behar of wearing black face in heated interview Overnight Health Care: US won't join global coronavirus vaccine initiative | Federal panel lays out initial priorities for COVID-19 vaccine distribution | NIH panel: 'Insufficient data' to show treatment touted by Trump works House Oversight Democrats to subpoena AbbVie in drug pricing probe MORE (D-Md.) earlier this month requested information from the White House about security clearance issues involving multiple current and former officials, including Kushner, ex-national security adviser Michael Flynn, former White House staff secretary Robert Porter and former deputy assistant to the president Sebastian Gorka Sebastian Lukacs GorkaSunday shows preview: Trump, lawmakers weigh in on COVID-19, masks and school reopenings amid virus surge Trump taps Gorka for national security advisory board Sunday shows preview: Coronavirus poses questions about school safety; Trump commutes Roger Stone sentence MORE.