Former Vice President Joe Biden Joe BidenSenate Republicans face tough decision on replacing Ginsburg What Senate Republicans have said about election-year Supreme Court vacancies Biden says Ginsburg successor should be picked by candidate who wins on Nov. 3 MORE won the endorsement of Sacramento Mayor Darrell Steinberg (D) Wednesday as he tries to rack up support in the Super Tuesday state of California.

“Throughout my career, I’ve seen Joe Biden unite people in common cause to deliver real solutions for families struggling with kitchen table issues. From expanding affordable housing to access to quality health care, I know Joe has the experience and know-how to bridge divides and build a brighter future at a crossroads moment for our country,” Steinberg said in a statement circulated by Biden’s White House campaign.

“Californians rejected Donald Trump Donald John TrumpObama calls on Senate not to fill Ginsburg's vacancy until after election Planned Parenthood: 'The fate of our rights' depends on Ginsburg replacement Progressive group to spend M in ad campaign on Supreme Court vacancy MORE to the tune of four million votes, and, with Joe, we can finally put an end to his cynical attacks on our state, its people and its progress. I’m proud to endorse Joe for President — he’ll be a leader for all Americans.”

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Steinberg had endorsed Sen. Kamala Harris Kamala HarrisThe Hill's Campaign Report: Trump and Biden vie for Minnesota | Early voting begins in four states | Blue state GOP governors back Susan Collins Kamala Harris: Black Americans have been 'disproportionately harmed' by Trump Biden town hall draws 3.3 million viewers for CNN MORE (D-Calif.) before she dropped out of the 2020 race.

The Sacramento mayor joins Los Angeles Mayor Eric Garcetti (D), Long Beach Mayor Robert Garcia (D), Sen. Dianne Feinstein Dianne Emiel FeinsteinMcConnell says Trump nominee to replace Ginsburg will get Senate vote Top Democrats call for DOJ watchdog to probe Barr over possible 2020 election influence Intensifying natural disasters do little to move needle on climate efforts MORE (D-Calif.) and several members of California’s House delegation in endorsing Biden.

The Golden State is set to be a key primary battleground, allocating an eye-popping 415 pledged delegates — the most of any state — on its March 3 primary.

Polling shows Biden in a tightly packed top tier in the California primary with Sens. Bernie Sanders Bernie SandersKenosha will be a good bellwether in 2020 Biden's fiscal program: What is the likely market impact? McConnell accuses Democrats of sowing division by 'downplaying progress' on election security MORE (I-Vt.) and Elizabeth Warren Elizabeth WarrenBiden's fiscal program: What is the likely market impact? Warren, Schumer introduce plan for next president to cancel ,000 in student debt The Hill's 12:30 Report - Presented by Facebook - Don't expect a government check anytime soon MORE (D-Mass.). The RealClearPolitics polling average in the state shows Biden with 23.5 percent, Sanders with 23.3 percent and Warren at 20.8 percent.