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The administration’s policy of detaining immigrants who crossed the border illegally years ago and holding them without a bond hearing has divided lower courts.

The winner of a cybersecurity contest prevailed by relying on an ‘open weight’ Chinese model — another sign that available A.I. systems could already be too powerful to easily regulate.

The factors pushing up yields, including the war in Iran and high government debt levels, are unlikely to dissipate soon.

Gov. Bill Lee, a Republican, ordered a review of the state’s lethal injection process after the botched attempt to put Christa Pike to death. She was hospitalized Wednesday.

Behold the paragons of rank incompetence.

We examine the arts center’s saga in Washington.

Documents obtained by The New York Times show that the campus police at Cornell University sent a condensed statement to a prosecutor, who then declined to bring charges.

Plus, a Kelvin wave is coming.

Plus, a Kelvin wave is coming.

Crude oil costs close to $100 a barrel because traders are worried hostilities could soon restart and the world is burning through its emergency stockpiles.

Allies of Gina Hinojosa want a Democratic group to support her bid for Texas governor — putting pressure on its chairman, Gov. Andy Beshear of Kentucky, who is weighing a run for president.

Clairity Breast, an A.I. tool that can predict five-year risk of developing breast cancer, is rolling out nationwide. Here’s what experts want you to know.