The device burned an exterior gate of the house in San Francisco, the police said, and it was unclear whether the artificial intelligence executive was home. The authorities arrested a suspect.

An interagency dispute over the use of high-energy lasers near airports led the Federal Aviation Administration to temporarily close the airspace twice in Texas this year.

After defeating a Democratic fixture in a 1988 primary, he rose to lead the House Foreign Affairs Committee, then was toppled himself in 2020, undone by an overheard comment.

At a convention in New York, possible candidates for the Democratic presidential primary are making overtures to Black voters, a vital constituency.

Mr. Blair will “lead the charge from the outside,” the president said on social media. The move comes as Republicans are bracing for a potentially difficult November election.

Mr. Adams, the former mayor of New York City, has expressed fondness for Albania, visiting the country in his last weeks in office.

Washington has been debating the thrust of Mr. Trump’s foreign policy for more than a decade, with the only consensus being that “America First” means whatever the president says it does.

At a convention in New York, several Democrats mulling presidential bids rallied around opposition to President Trump’s decision to attack Iran.

He helped lead what became known as the Midtown Manhattan Study, which showed that mental impairment is highly correlated with low socioeconomic status.

Prescribing produce, crafting meals: More medical schools are teaching students how to cook and use food as a tool for treating patients.

President Trump said in an interview that he had known his wife wanted to address rumors about the late sex offender at some point, but that he had not known exactly what she would say.

Democrats in Congress have assiduously avoided talk of a third impeachment of President Trump, concerned that it would distract from their midterm campaign message. That tide seems to have turned.

Without Trump on the midterms ballot, how will his party fare?

The foreign policy analyst Fareed Zakaria explains how the Iran war has been a turning point in America’s standing in the world.

The president has proposed the arch, which would rise on a Washington roundabout across from the Lincoln Memorial, as a way to celebrate America’s 250th anniversary.

Annie Judis, 82, gets a kick out of defying expectations about what the body can do.