With Nancy Pelosi declining to seek re-election after nearly four decades, the contest for her San Francisco seat is taking shape. Democrats Saikat Chakrabarti and Scott Wiener, who launched campaigns this year, praised Pelosi while drawing contrasts: Chakrabarti, a 39-year-old progressive and former chief of staff to Alexandria Ocasio-Cortez, touts a large volunteer operation, universal healthcare and childcare, a ban on congressional stock trading, and "to stop funding the genocide in Gaza"; Wiener, 55, a state senator and attorney, cites work on housing, climate and a new mask ban for law enforcement, and vows stronger pushback against Trump.

Prepared by Lauren Mitchell and reviewed by editorial team.