The race for mayor of San Francisco gets a new heavyweight contender as Board of Supervisors President Aaron Peskin throws his hat into the ring. Peskin is the most prominent progressive challenging incumbent Mayor London Breed. Scott and Marisa are joined by KQED politics reporter Joe Fitzgerald Rodriguez to talk about the San Francisco mayor's race. 

Plus, in the race to replace retiring Congresswoman Anna Eshoo in Silicon Valley, Assemblyman Evan Low and County Supervisor Joe Simitian tied for second place, deadlocking at 30,249 votes each in the March primary. That means three Democrats will compete in a general election for Congress, in what's believed to be a first in California history. Guy Marzorati joins Scott and Marisa to talk about the unpredictable path to November. 

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