Axios

OpenAI said Tuesday it is pausing some model work over safety concerns, days after rival Anthropic doubled down on insisting that its own safety measures were solid enough that it didn't need to slow down.

Why it matters: The two leading AI labs are publicly diverging on how to manage safety risks, potentially putting them on different model-release timelines as both prepare for expected IPOs.

President Trump said Tuesday night he is pausing for three days 50% tariffs on billions of dollars worth of Canadian goods that were set to take effect early Wednesday.

Why it matters: It follows an intense push in recent days — including talks between Trump and Canadian Prime Minister Mark Carney on Tuesday — to avert another escalation in the North American trade war.

Angie Nixon's stunning Florida Senate primary win on Tuesday gave the Democratic Socialists of America its biggest statewide breakthrough yet: For the first time ever, a DSA member won a major-party nomination for statewide office.

Why it matters: The breakthrough —the biggest upset in modern Florida Democratic politics— was also stunning because Republicans have spent years making opposition to socialism central to their political brand in the state.