Giacomo Bologna | Mississippi Clarion Ledger

Sarah Warnock/Clarion Ledger

Bernie Sanders is holding a campaign event at the Two Mississippi Museums in downtown Jackson on Friday ahead of Mississippi's Democratic presidential primary on Tuesday.

Doors to auditorium, which can "seat hundreds," will open at 1:30 p.m., according to the campaign, and the event will begin at 2:30 p.m. People interested in attending can register to attend at www.events.berniesanders.com/event/257673/.

Biden in Mississippi: Joe Biden to visit Jackson church ahead of Mississippi Democratic primary

Jackson Mayor Chokwe Antar Lumumba endorsed the Vermont senator last week after holding a "people's caucus," where a group of Jackson residents voted to back Sanders.

Rogelio V. Solis, AP

"Sen. Sanders rose to the top," Lumumba told BuzzFeed News of the caucus, where representatives for Sanders, Joe Biden, Mike Bloomberg and Elizabeth Warren also gave a pitch. "On a personal level, Sen. Sanders rises to the top for me because he has demonstrated the most consistency, and I think that his policies and what he has prioritized in his campaign speaks to the issues that we’re most concerned with in Mississippi."

As the leader of the largest Mississippi city whose residents are mostly Democrats, Lumumba's endorsement could boost Sanders in a state with the largest proportion of African Americans residents.

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Sanders has struggled to court African American voters. Exit polls in South Carolina showed former Vice President Joe Biden won 61% of black voters, while Sanders got the support of 17%.

Biden is coming to Jackson Sunday. He is expected to attend the 9:30 a.m. service at New Hope Baptist Church.

Little polling has been done in Mississippi ahead of the March 10 primary, but in polling conducted last summer, Biden was the clear front-runner.

There were still 24 people vying for the nomination in June when Millsaps College and Chism Strategies conducted its survey, which contacted people via landline and messages to mobile phones.

At that time, Biden had a commanding lead. The survey found 50% of Mississippi Democrats supported or were leaning toward the former vice president.

More than 21% of Democrats said they were undecided, according to the survey. Massachusetts Sen. Elizabeth Warren was at 7% and Vermont Sen. Bernie Sanders was at 6.6%. California Sen. Kamala Harris, who has since dropped out of the race, polled at 5.1%.

In 2016, former Secretary of State Hillary Clinton clobbered Sanders in the Mississippi Democratic primary for president, winning more than 82 percent of the vote.

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Bernie Sanders comes home to Vermont for Super Tuesday

Luke Ramseth contributed to this report.