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At the end of 2022, the four largest US cities – New York, Los Angeles, Chicago and Houston – all had Black mayors. It was a historic alignment made possible by the aftereffects of the Black Lives Matter civil rights movement and the unprecedented wave of protests following the killing of George Floyd in 2020.

Six years on, only one of those mayors remains: the embattled Karen Bass of Los Angeles, who is facing a strong challenge from a younger, even more progressive challenger. Bass’s opponent is Nithya Raman, a member of the Democratic Socialists of America, although the group is considering rescinding its endorsement over her refusal to explicitly embrace the Boycott, Divestment and Sanctions movement against Israel.