As Pelosi’s exit nears, San Francisco Democratic candidates fight over what comes next

For nearly four decades, San Francisco politics revolved around one towering Democratic figure: Rep. Nancy Pelosi (D-CA). Now, as the longtime lawmaker prepares to leave Congress, the city is having an unusually public argument over what comes next. State Sen. Scott Wiener (D-CA) and San Francisco Supervisor Connie Chan are competing to succeed Pelosi in…