Little known a year ago, she is a Democratic Socialist drawing comparisons to New York’s Zohran Mamdani. She has mounted a strong challenge to the incumbent, Karen Bass.

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Mayor Karen Bass and her former ally, the City Council member Nithya Raman, attacked each other’s records on Tuesday night in the last televised debate before the election.

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Two Democratic candidates choose opposite tacks on public safety and policing, seeking to corral undecided voters.

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