Why some fire hydrants in LA had no water to fight the fires

A fire hydrant burns in the Eaton fire in Los Angeles on January 8.

JOSH EDELSON / AFP

• Some fire hydrants ran dry in LA due to enormous water demand and infrastructure problems.
• President-elect Trump wrongly blamed a separate debate over water from northern California.
• Here's what you need to know about the water supply problems in Los Angeles.

Some fire hydrants in the Pacific Palisades area of Los Angeles ran dry this week after the wildfires overwhelmed the local water system.