Storms Force Evacuation of Trump's July 4 'Salute to America' on the National Mall

President Trump marked the nation's 250th birthday with a campaign-style 'Salute to America' celebration on the National Mall in Washington. Severe thunderstorm and lightning warnings forced organizers to evacuate the crowd mid-event, delaying Trump's planned address as attendees sheltered and sang the national anthem. A record-setting heat wave had already canceled the city's Fourth of July parade earlier in the day.