President Trump defends his role as an AI guardrail amid congressional debate over slowing tech development. The Supreme Court blocks a postal rule targeting mail ballots, while Senator Mitch McConnell returns to the Senate floor after a three-month absence. Iran’s nuclear chief is denied entry to an IAEA meeting following a report to the UN Security Council. The episode also marks the death of costume designer Bob Mackie and highlights "What We Do in the Shadows" and Matthew Rhys’s record-breaking Emmy wins.