Former Vice President Joe Biden Joe BidenCast of 'Parks and Rec' reunite for virtual town hall to address Wisconsin voters Biden says Trump should step down over coronavirus response Biden tells CNN town hall that he has benefited from white privilege MORE was poised to cement his front-runner status in the Democratic presidential race on Tuesday after he scored a major victory in Michigan over Sen. Bernie Sanders Bernie SandersMcConnell accuses Democrats of sowing division by 'downplaying progress' on election security The Hill's Campaign Report: Arizona shifts towards Biden | Biden prepares for drive-in town hall | New Biden ad targets Latino voters Why Democrats must confront extreme left wing incitement to violence MORE (I-Vt.).

The victory followed on the heels of Biden's two other wins in Mississippi and Missouri on Tuesday. Biden also won Idaho, which Sanders had won in his 2016 primary bid against Hillary Clinton Hillary Diane Rodham ClintonHillicon Valley: FBI chief says Russia is trying to interfere in election to undermine Biden | Treasury Dept. sanctions Iranian government-backed hackers The Hill's Campaign Report: Arizona shifts towards Biden | Biden prepares for drive-in town hall | New Biden ad targets Latino voters FBI chief says Russia is trying to interfere in election to undermine Biden MORE, while North Dakota and Washington are yet to be determined.

Speaking at his campaign’s Philadelphia headquarters on Tuesday night, Biden all but declared himself the Democratic presidential nominee. He thanked Sanders and his supporters for their “tireless energy and their passion,” noting that they all “share a common goal” in defeating Trump.

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“This campaign is taking off and I believe we’re going to do well from this point on,” Biden said. “Take nothing for granted. I want to earn every single vote from every single state.”

The Vermont senator was not expected to deliver remarks on the primary results on Tuesday night.

Biden’s win in Michigan, a delegate-rich state and critical general election battleground, was particularly crushing for Sanders, who unexpectedly carried the state in the 2016 Democratic primary despite polls showing Clinton with an outsize lead in the Wolverine State.



The Vermont senator and his aides have long argued that his populist message would resonate among working-class voters in Michigan and help deliver the state for Democrats in the November general election after President Trump Donald John TrumpHR McMaster says president's policy to withdraw troops from Afghanistan is 'unwise' Cast of 'Parks and Rec' reunite for virtual town hall to address Wisconsin voters Biden says Trump should step down over coronavirus response MORE flipped it in 2016.



In recent days, he has acknowledged that a win in Michigan is “very, very important,” though he has stopped short of calling it a must-win contest for his campaign.



Biden’s primary wins on Tuesday were the latest in a remarkable comeback for the former vice president, whose campaign appeared on the brink of collapse less than two weeks ago.



But a decisive victory in the South Carolina primary late last month and 10 subsequent wins on Super Tuesday helped him reclaim the front-runner status he has enjoyed for much of the past year.



Three of his centrist rivals — former South Bend, Ind., Mayor Pete Buttigieg Pete ButtigiegBogeymen of the far left deserve a place in any Biden administration Overnight Defense: Woodward book causes new firestorm | Book says Trump lashed out at generals, told Woodward about secret weapons system | US withdrawing thousands of troops from Iraq A socially and environmentally just way to fight climate change MORE, Sen. Amy Klobuchar Amy KlobucharEPA delivers win for ethanol industry angered by waivers to refiners It's time for newspapers to stop endorsing presidential candidates Biden marks anniversary of the Violence Against Women Act, knocks Trump and McConnell MORE (D-Minn.) and former New York City Mayor Michael Bloomberg Michael BloombergTop Democratic super PAC launches Florida ad blitz after Bloomberg donation The Hill's 12:30 Report - Presented by Facebook - Latest with the COVID-19 relief bill negotiations The Memo: 2020 is all about winning Florida MORE — endorsed Biden after exiting the race, allowing the former vice president to consolidate the support of moderate voters who remain wary of nominating a self-described democratic socialist in Sanders.



Biden is likely to seize on his win in Michigan to bolster his argument that he is the candidate best suited to take on Trump in November. The state was among three Rust Belt states, along with Pennsylvania and Wisconsin, that Trump carried in 2016 and that Democrats see as vital to winning back the White House this year.



The victory on Tuesday could allow Biden to claim a mandate from voters in the Wolverine State and may bolster his campaign throughout the Midwest, including in Ohio, which holds its primary next week.



It’s also likely to raise questions about Sanders’s future in the primary race. Biden is expected to widen his delegate lead on Tuesday and appears poised to continue his winning streak in the coming weeks.

In Florida, which holds its primary next Tuesday, recent polls show Biden leading Sanders by double digits. And in Arizona, another state that holds its primary next week, Biden was holding a 28-point advantage over Sanders, according to a survey released on Monday by the Phoenix-based firm OH Predictive Insights.



The last 10 days also represent a stark turnaround for Sanders, who emerged as the primary race’s early front-runner after top finishes in Iowa, New Hampshire and Nevada, where the first three nominating contests were held.



South Carolina, however, posed an insurmountable challenge for the Vermont senator, as black voters and moderates came out in force for Biden in the primary.

Those same struggles manifested once again last week as Biden captured wins in North Carolina, Virginia, Alabama and seven other Super Tuesday states.

Black voters, often seen as the backbone of the Democratic Party, also helped deliver Biden a big victory in Mississippi on Tuesday.

Updated: March 13 at 1:28 a.m.