Trump set to deliver 'historic' speech celebrating America's 250th anniversary

President Donald Trump is set to deliver what the White House is calling a "historic" speech Saturday night before a massive fireworks display celebrating America's 250th anniversary.Trump is still expected to take the stage at 10 p.m. at the conclusion of the Salute to America celebration on the National Mall, though timing of events may fluctuate due to adverse weather, per a senior White House official.The president's address is expected to look back on America's history since its founding 25