San Francisco is on the cusp of a historic recall election that could boot out one of the country’s most progressive district attorneys, Chesa Boudin, who took office in early 2020. Boudin, whose parents were incarcerated when he was just a baby, has rattled the establishment by trying to lower the city’s jail population and divert low-level offenders from prisons—changes that he says will, in the long run, keep the community safer.