As wildfires roar into residential neighborhoods, firefighters in California and elsewhere are finding that water systems can’t keep up with the demand.

Out-of-control wildfires are ripping across parts of Los Angeles, leading to at least five deaths, burning down hundreds of buildings, and prompting more than 130,000 people to flee their homes in America's second-largest city.

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.