Now there’s no question that today the nine-county Bay Area is solidly blue, but it hasn’t always been this way. Bay Curious listener Marcus wants to know: When and why did the Bay Area become overwhelmingly liberal? The answer depends on who you ask.

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Reported by Scott Shafer. Bay Curious is made by Olivia Allen-Price, Katrina Schwartz, and Rob Speight. Additional support from Erika Aguilar, Jessica Placzek, Kyana Moghadam, Paul Lancour, Suzie Racho, Carly Severn, Bianca Hernandez, Ethan Lindsey, Vinnee Tong and Don Clyde.

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