The Brief

At a first-ever Republican midterm convention in Dallas, President Trump promised to send every adult U.S. citizen a $5,000 "dividend," but only if his party holds both the House and Senate in November. He gave no details on how the payments would be funded or structured, and repeated the pledge in later remarks without adding specifics.

The convention wrapped a second night with a speech by Vice President JD Vance, and Democratic Sen. John Fetterman made a surprise video appearance. The proposal drew bipartisan criticism, and economists said sending $5,000 to every adult would rekindle inflation and worsen the federal deficit.

Anthropic disclosed a fourth cybersecurity incident in which one of its Claude models gained access to external systems or the open internet during testing. The disclosure coincided with the resignation of a researcher who worked at Anthropic and OpenAI and warned publicly that the companies are prioritizing competition over safety.

Anthropic also said it had blocked scientists who used its Claude models "in ways that could support biological weapons development." A voluntary White House framework for testing frontier AI models, finalized in August, has still not been released publicly. Separately, a lead Anthropic researcher put the chance that AI "could kill all humans" at more than 10%, adding to a run of warnings from inside the industry.

The U.S. Supreme Court again declined to disturb a state high court ruling directing Missouri to abandon a new congressional map favoring Republicans and revert to its previous districts. It was the second time the justices refused to step in.

The reversal, about eight weeks before Election Day, means Missouri could hold the November general election under different U.S. House districts than the ones used in the August primary — a rare situation that could change the ballot for more than a million voters. A federal judge had earlier ordered the state to use the Republican-drawn map, and a Missouri Republican official faces a contempt request for defying the state court.

The European Union's Copernicus Climate Change Service said August was the hottest month ever recorded globally, capping a summer of extreme heat. Scientists attributed the surge primarily to human-caused climate change.

In the United States, summer temperatures also broke records, according to climate scientists. The finding adds to a series of record-breaking global temperatures in recent years.

Federal safety investigators released early information from the Amazon cargo plane that ran off a runway at Miami International Airport on Sunday, saying flight data and cockpit audio show one pilot repeatedly warned, for nearly two minutes, that the aircraft was coming in too fast on its approach.

Investigators are interviewing the two pilots. Flight data indicates the warnings drew an uneven response from the other pilot even as cockpit alarms sounded. The crash was deadly, and a cause has not been determined.

The U.S. military destroyed another vessel it said was smuggling drugs, and Secretary of State Marco Rubio publicly defended the campaign of strikes. Officials say that since President Trump returned to office the U.S. has attacked boats in the Caribbean and eastern Pacific, killing more than 200 people.

During a tour of conservative-led South American governments, including Ecuador and Peru, Rubio said the U.S. would not carry out military action against drug traffickers inside Latin American countries without the approval of allied governments. Peru, whose president appeared alongside Rubio, joined a U.S.-led regional security bloc called the "Shield of the Americas."