Today's top stories, with context, in just 15 minutes.   

On today's podcast:   

1) The Supreme Court refused to clear the Postal Service to enforce new restrictions on mail-in ballots for the congressional midterm elections, rebuffing the Trump administration’s request to intervene. The court denied the Justice Department’s request to lift a Boston federal judge’s order that barred the Postal Service from making its new mail-in ballot rules mandatory through the November contests. The Supreme Court's decision means that the Postal Service cannot enforce the new rules for the midterms, but the legal fight over whether the agency can ultimately adopt the rules for future election cycles may still continue.   

2) The 10-year US Treasury yield rose to the highest in almost two decades, driven by surging energy prices, mounting debt and inflation. The yield on the global bond benchmark rose to 5.02% on Tuesday, surpassing a peak from 2023 to hit the highest since 2007. The pressure in the bond market raises the stakes ahead of the Federal Reserve’s interest-rate decision, where investors expect officials to raise short-term borrowing costs for the first time since July 2023.   

3) President Trump's opposition to guardrails on artificial intelligence puts him at odds with lawmakers from both parties who have AI safety fears. Trump belittled a push led by Anthropic PBC and OpenAI to slow work on cutting-edge systems, dismissing existential fears about AI as "a hoax." Lawmakers are working on legislation aimed at addressing AI safety concerns, including a bipartisan group of senators who are working on legislation requiring top AI developers to prevent catastrophic risks.Eric Mollo