Officials encourage masks as coronavirus cases surge, U.S. fighter jet has close call with Iranian passenger plane, and friends split $22 million jackpot after nearly 30-year-old promise.Watch NBC Nightly News With Lester Holt at 6:30 p.m. ET 5:30 p.m. CT (or check your local listings).00:00 Intro01:36 Dr. Birx: FL, TX, AZ & CA Are Four New York's As Covid Surges03:42 Critics Say CDC School Guidelines Put Politics Over Safety5:48 Exclusive: L.A. Schools Chief Defends His Decision To Keep Kids Home09:06 New Fallout From Trumps Abrupt Convention Cancellation11:03 As Covid Surges, Why U.S. Cities Still Face Testing Crisis12:58 U.S. Fighter Jet Came Dangerously Close To Passenger Plane14:35 Millions Of Americans May Face Eviction As Protections Expire17:01 Viewer Email Prompts Reporter To Discover Cancer18:52 Three Tropical Threats Bearing Down This Weekend