Mueller has been looking at Kushner - the son-in-law and aide to President Trump - as part of his investigation into whether and members of the Trump campaign colluded with Russian Federation during the 2016 presidential election, according to CNN. The documents are similar to the ones Kushner gave to congressional investigators.
Just as he had with congressional investigators, Kushner voluntarily turned over all the documents he had from the presidential campaign, the transition, and any contacts with Russian Federation, according to the CNN report.
Trump made the purported remarks during a phone call with former White House Chief Strategist, and alleged Kushner adversary, Steve Bannon.
Kushner has denied any wrongdoing or improper communications with Russian Federation during the 2016 campaign.
Investigators are asking questions about Kushner's role in firing James Comey as Federal Bureau of Investigation director. Trump has excoriated Sessions for recusing himself from the investigation and handing it over to a deputy to oversee, saying he should not have been appointed.
'I'm not under investigation, you know, ' the president said at one point to White House reporters Maggie Haberman and Peter Baker. Special counsel spokesman Peter Carr also declined to comment.
Still, three advisers, who spoke on the condition of anonymity to discuss internal dynamics, said reports of a shellshocked team had been overstated, although some conceded that word that Sam Clovis, an early aide on Trump's team, had been interviewed by Mueller's team had caught some advisers off guard. The president is "annoyed" by the omnipresent Russian Federation fever, the adviser said, but he is comfortable with the strategy adopted by Ty Cobb, a senior White House lawyer, who has insisted on cooperating with Mueller without attacking him, in hopes of a speedy resolution. It is unclear why Kushner would want Comey fired. Some people close to the White House believe it simply reflected a political neophyte wanting to get rid of a presidential enemy without understanding the ramifications, or a son-in-law trying to please his father-in-law and boss. That meeting was also attended by then-campaign chairman Paul Manafort, who was indicted on 12 felony counts as a part of Mueller's probe. Bannon has been offering Trump possible strategies for how to push back against Mueller's tireless investigation. Both pleaded not guilty.
As the Kushner report was coming out, Trump called the New York Times Wednesday afternoon and told reporters Maggie Haberman and Peter Baker that, "I'm actually not angry at anybody".
Trump, meanwhile, has reacted to the deteriorating situation by lashing out on Twitter and venting in private to friends.