Rep. Ted Lieu (D-Calif.) renewed his call on Tuesday to revoke White House Senior Adviser Jared Kushner's security clearance after it was revealed that he attended a June 2016 meeting with a Russian lawyer who promised dirt on then-Democratic rival Hillary Clinton Hillary Diane Rodham ClintonJeff Flake: Republicans 'should hold the same position' on SCOTUS vacancy as 2016 Momentum growing among Republicans for Supreme Court vote before Election Day Warning signs flash for Lindsey Graham in South Carolina MORE.

"Don Jr., Manafort [and] Kushner were all at the same collusion meeting. But only Kushner has a security clearance. It needs to be suspended NOW," Lieu wrote on Twitter.

Don Jr., Manafort & Kushner were all at the same collusion meeting. But only #Kushner has a security clearance. It needs to be suspended NOW https://t.co/fFPCbiwZYe — Ted Lieu (@tedlieu) July 11, 2017

Dozens of Democratic lawmakers have called in recent months for Kushner's security clearance to be suspended amid revelations that he met with Russian Ambassador Sergey Kislyak and the head of a Russian state-owned bank during the presidential transition.

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But some Democrats doubled down on that demand on Tuesday after President Trump Donald John TrumpUS reimposes UN sanctions on Iran amid increasing tensions Jeff Flake: Republicans 'should hold the same position' on SCOTUS vacancy as 2016 Trump supporters chant 'Fill that seat' at North Carolina rally MORE's eldest son Donald Trump Jr. released a chain of emails detailing his conversation about setting up a meeting with an attorney reportedly connected to the Russian government.

In those emails, Trump Jr. says that Trump campaign manager Paul Manafort and Kushner, the president's son-in-law, would also attend the meeting.

A special counsel and multiple congressional committees are investigating Russia's efforts to meddle in the 2016 election, as well as whether members of Trump's campaign coordinated with Moscow.

Kushner was reported in May to be under scrutiny in the investigation.