White House senior adviser Jared Kushner was summoned by investigators this week to testify in special counsel Robert Mueller‘s investigation into possible Russian collusion.

Jared Kushner Interviewed By Robert Mueller

In July 2017, 37-year-old Kushner — Trump’s son-in-law and a member of the real estate firm Kushner Companies — issued a brief statement in which he said he had no contacts or connections with Russian officials.

“Let me be clear: I did not collude with Russia, nor do I know of anyone else in the campaign who did so,” Kushner told reporters at the time. “I had no improper contacts. I have not relied on Russian funds for my businesses, and I have been fully transparent in providing all requested information.”

He continued: “Donald Trump had a better message and ran a smarter campaign, and that is why he won. Suggesting otherwise ridicules those who voted for him.”

MSNBC’s Ari Melber reported on Wednesday that Mueller’s team questioned Kushner for six hours about Russian collusion and other issues like Trump’s transition into office, possible obstruction of justice and the firing of former FBI Director James Comey. 

Former Democratic National Committee (DNC) chairwoman Donna Brazile told Melber she believes Kusher was “more than just a witness” to the Trump campaign team’s collusion efforts in 2016. Brazile noted how Kushner recently regained his top security clearance after several revisions.

“Remember, he took credit for the [Trump] social media campaign, the digital campaign,” Brazile said of Kushner. “And now that we know the role that Cambridge Analytica played along with Facebook, we need to know more about what Jared did do, and not just witness but what he actually did over the course of the campaign.”

Kushner Companies’ flagship building in New York is set to receive a receive a major bailout from a Qatari government-owned firm, which raises questions about potential conflicts of interest he may have.

A lawyer for Kushner told CNN that his client was not asked by Mueller about his family’s real estate business, or about his own personal finances.

Several months before Trump was inaugurated, Kushner reportedly met with two top Russian officials: former Russian ambassador to the U.S. Sergey Kislyak and Sergey Gorkov, who at the time was chairman of a government-run bank.

Former New York City Mayor Rudy Giulianione of Trump’s lawyers in the Russia probe, recently called Kushner “disposable’ in a television interview.