NPR's morning news brief for 6 August 2026 rounds up three developing stories spanning international diplomacy and US politics.

– Iran is reportedly nearing an agreement with Oman on navigation protocols for the Strait of Hormuz, a critical global shipping route for oil.
– Both candidates in Michigan's upcoming US Senate race face distinct challenges as the contest heats up.
– Donald Trump promoted the state of the US economy during remarks delivered in Las Vegas.