By Thursday afternoon, most of the highway had reopened, many evacuees were able to return home and the blaze near Castaic Lake, a reservoir about 40 miles northwest of downtown Los Angeles, was 14 percent contained. The fire continued to burn away from homes in suburbs outside of Santa Clarita, and through woody hillsides at a state park.

President Donald Trump threatened to withhold federal aid from California as it works to recover from devastating wildfires, recycling several baseless claims and attacks against California’s Democratic leaders during his first sit-down interview since his inauguration.