President Trump has said a deal with Iran is "largely negotiated" and that he will either sign "a great and meaningful" pact with Tehran, "or there will be no deal." Fifty thousand Southern California residents remain under evacuation orders Monday after emergency crews raced to prevent a tank holding a volatile industrial chemical from exploding at an aerospace facility in Garden Grove. Saturday's shooting near the White House has raised security concerns ahead of summer celebrations to mark America's 250th birthday. The shooter, who was killed after opening fire on a Secret Service checkpoint, had previously blocked a White House entry lane last June, court records show.