A Twitter fight between two of San Francisco's biggest, and wealthiest, tech leaders says a lot about the city's problem with homelessness. Proposition C calls for taxing the city's most profitable companies to double the $300 million already spent on homelessness. You might be surprised by who supports and opposes it. Guest: Guy Marzorati, KQED politics and government reporter Learn more about your ad choices. Visit megaphone.fm/adchoices