Water experts dismissed Trump’s claims that California water policy is to blame for dry hydrants. But Los Angeles is also unprepared for the age of urban wildfires.

Southern California faces unprecedented wildfires, displacing thousands, causing multiple deaths, and devastating numerous properties. Exceptionally dry conditions and the Santa Ana winds have exacerbated the fires' intensity.

Martin Adams, former general manager of the Los Angeles Department of Water and Power, blows up some right-wing myths about the water supply in Pacific Palisades, and talks with Alex Wagner about the realities of municipal water systems and ideas for adapting a system built for occasional residential fires to deal with a large scale,