Early summer heat records were shattered across the western United States before a slight easing on Friday. Excessive heat warnings affected millions in California, Nevada, Arizona, New Mexico, and Texas. Las Vegas hit 111°F (44°C), its earliest date for such a high, while Death Valley reached 122°F. The heatwave, exacerbated by climate change, forced the closure of hiking trails and sent nearly a dozen people at a Trump rally in Arizona to the hospital with heat exhaustion.
