Rep. Joe Kennedy Joseph (Joe) Patrick KennedyDemocrats see fundraising spike following Ginsburg death Massachusetts town clerk resigns after delays to primary vote count Bogeymen of the far left deserve a place in any Biden administration MORE III (D-Mass.) is set to endorse Sen. Elizabeth Warren Elizabeth WarrenJudd Gregg: The Kamala threat — the Californiaization of America GOP set to release controversial Biden report Biden's fiscal program: What is the likely market impact? MORE (D-Mass.) for president when she formally announces her candidacy on Saturday, according to a person familiar with the plans.



Kennedy will make the announcement in a speech introducing Warren at an event in Lawrence, Mass., where she is expected to officially kick off her campaign for the White House. The planned endorsement was first reported on Friday by The Boston Globe.

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A spokesperson for Warren's campaign did not immediately respond to The Hill's request for comment.

Kennedy, a rising star in the Democratic Party, will be among Warren's first high-profile endorsers.

While most lawmakers have so far withheld their endorsements in the nascent 2020 Democratic presidential primary, a handful of politicians have offered candidates their support.

Sen. Bob Menendez Robert (Bob) MenendezKasie Hunt to host lead-in show for MSNBC's 'Morning Joe' Senators ask for removal of tariffs on EU food, wine, spirits: report VOA visa decision could hobble Venezuela coverage MORE (D-N.J.) endorsed Sen. Cory Booker Cory Anthony BookerBipartisan praise pours in after Ginsburg's death DHS opens probe into allegations at Georgia ICE facility Democratic lawmakers call for an investigation into allegations of medical neglect at Georgia ICE facility MORE (D-N.J.) last week after he threw his name into the primary contest.

And Sen. Kamala Harris Kamala HarrisJoe Biden looks to expand election battleground into Trump country Fox's Napolitano: Supreme Court confirmation hearings will be 'World War III of political battles' Rush Limbaugh encourages Senate to skip hearings for Trump's SCOTUS nominee MORE (D-Calif.), who announced her candidacy last month, has already secured endorsements from California lawmakers, including Reps. Ted Lieu Ted W. LieuThe spin on Woodward's tapes reveals the hypocrisy of Democrats Larry Kudlow defends response to coronavirus: Trump 'led wisely' Lieu on Trump 'playing it down' on coronavirus: 'This is reckless homicide' MORE (D) and Katie Hill Katherine (Katie) Lauren HillObama counsels NBA players on forming a social justice committee Republicans cast Trump as best choice for women House GOP campaign chairman insists party will win back majority MORE (D).

Kennedy's endorsement could give Warren a boost as she seeks to move beyond the controversy surrounding her past claims of Native American ancestry.

Criticism of those claims was renewed this week after The Washington Post published a copy of Warren's 1986 registration card for the State Bar of Texas in which she identifies herself as "American Indian."

Updated at 1:38 p.m.