Housing activists, landlords, city officials, and labor leaders came together today to support measure F, a ballot measure that seeks to reign in the city's controversial short term rental law. The broad coalition joined San Francisco Supervisor David Campos on the steps of city hall to denounce the millions of dollars Air BnB is spending to defeat the measure. From the steps, the crowd fallowed Campos inside to watch him question city agencies about their current enforcement practices. Pacifica's Mike Kohn has more.