Feinstein, the top Democrat on the Senate Judiciary Committee, sent a letter on Wednesday to White House counsel Donald McGahn, saying she wants him to turn over details on Kushner by Nov. 27.

"In order to conduct a fair, balanced and thorough investigation the committee needs to have the facts and the requested documents. This is also important for the committee's upcoming questioning of Mr. Kushner," Feinstein wrote in the letter.

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A spokesman for Feinstein clarified that a sit-down between the committee and Kushner has been requested, but not set up yet.

Feinstein, who is up for reelection in 2018 and facing a challenge from the left, wants any documents tied to Comey and Flynn's firing that Kushner sent, received or reviewed.

She also wants any documents regarding a mid-2016 meeting at Trump Tower with a Russian lawyer, which was attended by Kushner, former campaign chairman Paul Manafort and Donald Trump Jr. Feinstein requested any documents about Trump Jr.'s public statements about the Trump Tower meeting.

Feinstein's letter to the White House was one of four she sent on Wednesday.

Feinstein sent her first spate of requests late last month, including asking for more details on Comey's firing.