Somara Theodore tracks severe thunderstorms in the East and the formation of Tropical Storm Debby in the Gulf of Mexico, and Faith Abubey is in Florida as residents brace for the Tropical Storm to strike; Ines de La Cuetara reports from Paris on Team USA's big day at the Olympics, with Simone Biles and Katie Ledecky both winning gold medals; Christiane Cordero reports on the stunning reversal in the plea deal for the accused 9|11 plotters, as the death penalty is now back on the table after Secretary of Defense LLoyd Austin revoked the controversial agreement; and more on tonight's broadcast of World News Tonight with David Muir.