Sen. Kamala Harris Kamala HarrisTexas Democratic official urges Biden to visit state: 'I thought he had his own plane' The Hill's Campaign Report: Biden on Trump: 'He'll leave' l GOP laywers brush off Trump's election remarks l Obama's endorsements A game theorist's advice to President Trump on filling the Supreme Court seat MORE (D-Calif.) said Thursday on "The Late Show" that a newly announced probe by Senate Judiciary Committee Chairman Lindsey Graham Lindsey Olin GrahamLincoln Project mocks Lindsey Graham's fundraising lag with Sarah McLachlan-themed video The Hill's Morning Report - Sponsored by Facebook - Republicans lawmakers rebuke Trump on election Trump dumbfounds GOP with latest unforced error MORE (R-S.C.) into former Vice President Joe Biden Joe BidenFormer Pence aide: White House staffers discussed Trump refusing to leave office Progressive group buys domain name of Trump's No. 1 Supreme Court pick Bloomberg rolls out M ad buy to boost Biden in Florida MORE is a "distraction" from the "criminal living in the White House."

"It's the same thing that they've been doing which is to create a big distraction from the facts and the evidence, and frankly, my perspective is 'leave Joe alone,'" Harris, a member of the Judiciary Committee, said of Graham's probe, which relates to Biden and his son Hunter Biden, as well as Ukrainian energy company Burisma Holdings.

"The Burisma, the Biden probe, it's a bunch of B.S. and it's to distract," she told "Late Show" host Stephen Colbert Stephen Tyrone ColbertColbert implores Pelosi to update 'weaponry' in SCOTUS fight: 'Trump has a literal heat ray' The Hill's Morning Report - Sponsored by Facebook - Washington on edge amid SCOTUS vacancy Juan Williams: Democrats need to bury their divisions MORE.

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"It also speaks to the fact that they know they have to create this big distraction because there's a lot there, otherwise that the American public is focusing on that tells us about the fact that we have a criminal living in the White House," the Democratic presidential hopeful said.

Graham said in a Thursday letter to Secretary of State Mike Pompeo that he wants documents connected to the Bidens and Ukraine.

He specifically requested documents "to assist in answering questions regarding allegations that Vice President Biden played a role in the termination of Prosecutor General [Viktor] Shokin in an effort to end the investigation of the company employing his son."