NPR News Now covers Michigan Senate candidate Mike Rogers' split with Trump over Canada tariffs and the Iran war. The report details Tropical Storm Isaias threatening the Gulf Coast with hurricane-force winds and emergency declarations. International news includes France pausing stun grenade use after a student protest incident and WHO concerns over a plague death in Siberia. Domestic stories feature the University of Arizona suspending fraternities and HUD investigating Wells Fargo for alleged Fair Housing Act violations.