NASCAR Truck race postponed until Sunday

Storms clouds move in over the track before a NASCAR Truck Series auto race, Saturday, June 15, 2019, at Iowa Speedway in Newton, Iowa. (AP Photo/Charlie Neibergall)

Track workers watch storms clouds move in over the track before a NASCAR Truck Series auto race, Saturday, June 15, 2019, at Iowa Speedway in Newton, Iowa. (AP Photo/Charlie Neibergall)