Three months after the 2016 presidential election, a still-bald Chia Pet in the shape of Donald Trump’s noggin stands on a windowsill in a downtown San Francisco office building, basking in the fog. Art books and an issue of Mother Jones lie stacked on a nearby table. Paintings hang adjacent to a “living wall” of cascading leafy green plants. A receptionist offers coffee, tea, or kombucha, apologizing for being all out of mason jars as she pours water into a glass milk bottle instead. And Tom Steyer, the billionaire hedge fund manager turned political mega-influencer—and long-rumored maybe-someday candidate for elected office—sits in a nearby transparent conference room, ready to rant about emails.