Watch live: Donald Trump to give major speech as America celebrates 250th anniversary
- President Trump is expected to hold a "long" speech on the National Mall Saturday evening as the U.
- marks its 250th anniversary, even as record heat threatens to upend the festivities.
- Military flyovers, events at the Great American State Fair and a massive fireworks show are also scheduled throughout the day.
Unverified
- President Trump is expected to hold a "long" speech on the National Mall Saturday evening as the U.
- marks its 250th anniversary, even as record heat threatens to upend the festivities.
- Military flyovers, events at the Great American State Fair and a massive fireworks show are also scheduled throughout the day.
Sources: The Hill