WASHINGTON (AP) — Two opposing factions in the artificial intelligence industry square off in a Democratic primary for a U. S. House seat. New York City Mayor Zohran Mamdani tests his political clout by backing fellow democratic socialists. And President Donald Trump, after two of his chosen candidates for governor lost Republican primaries this month, ensured it won't happen again — by endorsing both candidates in a South Carolina runoff. Those are a few of the races to watch on Tuesday a...

President Donald Trump is going to a Mack Truck facility in a battleground district in swing state Pennsylvania Tuesday, shifting attention to the U. S. economy in his first major public event beyond the capital since he signed an interim agreement to end the Iran war. Trump's trip to the Allentown-area business comes as he works to try to put the conflict — and the higher gasoline prices it caused — in the rearview mirror as November midterm elections draw closer. It's the president's to...

Mexico, Kenya, Italy and other nations around the world are experiencing one to two more months of heat stress than they were several decades ago, new research published Monday says, and some areas even more so. Regions previously untouched by heat stress are now feeling it, too. Extreme feels-like temperatures, heat stress days and tropical nights have all become dramatically more frequent, long and severe over the past six decades as the planet's warming intensifies — a result of the of to...