Rep. Karen Bass, who made history by becoming the first woman and first Black woman to be elected mayor of Los Angeles will be sworn into office by Vice President Kamala Harris, The Los Angeles Times reports.

The Democratic congresswoman beat out billionaire developer Rick Caruso last month by more than nine percentage points in a contentious race to lead the nation’s second largest city. The ceremony takes place on the steps of Los Angeles City Hall beginning at 11:30 a.m. on Sunday (Dec. 11) and her term ast 43rd mayor officially begins the next day.

According to the Times, Bass asked Harris to swear her in as an acknowledgement to their positions as two of the most powerful Black women in California. Harris, served as U.S. Senator from the state before becoming vice president.  She is holding the event on Sunday “to make it easier for Angelenos to attend and to ensure her first day as mayor is dedicated to bringing unhoused Angelenos inside and making our city safer and more livable for all,” the newspaper reports.

Both Harris and President Joe Biden had endorsed Bass early on and she won the June primary over Caruso spurring both of them into the November election. The election was not immediately decided and took nine days for the results to be revealed.

When Bass was officially declared the projected winner on Nov. 17, Harris, who appeared twice with the congresswoman on the campaign trail and served as U.S. Senator of California, tweeted, “Congratulations to my friend @KarenBassLA, the next mayor of Los Angeles!”

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With Bass as a supporter, the Biden White House would benefit as California stands as an important fixture in national politics, the Times says. Traditionally a blue state, Greater Los Angeles is its most populous metropolitan area, lending itself to potentially heavy votes in  the 2024 election.

Bass started as a physician assistant in an emergency room in Los Angeles County and a community organizer. In 1990, the Los Angeles native founded the Coalition for Substance Abuse Prevention and Treatment in response to the crack cocaine epidemic. She was the state Assembly speaker before being elected to Congress in 2011. From 2019 to 2021, she was the chair of the Congressional Black Caucus.