Extreme heat advisory delays National Mall July 4 event, organizers say

Entry to the National Mall for a record-breaking fireworks show celebrating July 4 has been delayed as Washington, D.C. braces for extreme heat, Freedom 250 organizers said Thursday. President Trump insisted he would still deliver a lengthy speech at Saturday’s “Salute to America 250 Celebration & Fireworks” event, despite forecasts that temperatures will climb to 107 degrees.…