Former Vice President Joe BidenJoe BidenBiden and Harris host 'family' Hanukkah celebration with more than 150 guests Symone Sanders to leave the White House at the end of the year Overnight Defense & National Security — Senate looks to break defense bill stalemate MORE endorsed Sen. Dianne FeinsteinDianne Emiel FeinsteinNew variant raises questions about air travel mandates Progressive groups urge Feinstein to back filibuster carve out for voting rights or resign Senators call for Smithsonian Latino, women's museums to be built on National Mall MORE’s (D-Calif.) reelection bid in the face of a challenge from the left, her campaign announced Thursday.
Biden noted that the two worked together in the Senate, and praised Feinstein for her advocacy for California and “progressive values we share.”
“She’s tenacious. She’s accomplished. And she’s exactly who we need in the Senate to stand up to this Administration and its Republican allies in Congress. Dianne is a dear friend, and I’m proud to endorse her re-election,” Biden said in a statement.
“I’m so honored that Joe has endorsed my re-election — his support is a big deal,” Feinstein said in a statement.
Feinstein, 84, has held her Senate seat since 1992, but faces a challenge in a Democratic primary this year. She failed to clinch the California Democratic Party’s endorsement last month.
Feinstein earned 37 percent of the delegates’ votes at the state party’s annual convention, while her main rival, state Senate leader Kevin de León (D), received 54 percent of the vote. Candidates needed 60 percent to win the endorsement.
De León has rallied progressives who are frustrated with Feinstein and feel she hasn't held President TrumpDonald TrumpMedia giants side with Bannon on request to release Jan. 6 documents Cheney warns of consequences for Trump in dealings with Jan. 6 committee Jan. 6 panel recommends contempt charges for Trump DOJ official MORE accountable.
Some liberal leaders, including Sen. Bernie SandersBernie SandersSymone Sanders to leave the White House at the end of the year Briahna Joy Gray says Chris Cuomo will return to CNN following scandal Postal Service expansion into banking services misguided MORE (I-Vt.) have thus far declined to weigh in on the race.
The Democratic primary will be held on June 5.
Biden, meanwhile, is at the center of speculation over whether he intends to run for the White House in 2020. He has said he is open to the idea, but has not made a final decision.
The former senator and vice president has taken an active role in the 2018 midterms, campaigning hard for Democrat Conor Lamb ahead of his special election victory earlier this month in Pennsylvania's 18th District.