State Sen. Scott Wiener makes his case for SB 50 by first reminding us that almost one-third of the nation’s housing shortage is in California. In homes per capita, California ranks 49th among U.S. states. Wiener argues that the California tradition of extreme local control of zoning has not worked, while sprawl continues and adds to our environmental woes. For too long, he says, we’ve allowed cites to do whatever they want in a race to the bottom.