U.S. imposes 50% tariffs on some Canadian goods

FBI searches Swalwell's home and seizes his devices

Ukraine attacks Russia with hundreds of drones

Growing desperation in Indiana as thousands still without power

Trump waves green flag to officially start D.C. Grand Prix race

Trump says D.C. Grand Prix is bigger than ‘we ever thought possible’

LIVE: NBC News NOW

NBC Nightly News Full Episode – Aug. 21

City leaders face death threats across the country as tensions grow over data centers