In a boost to the Harris campaign, pop megastar Taylor Swift told her 283 million followers on Instagram in a post immediately following the debate that she would back Harris and her running mate Tim Walz.

Philadelphia and Pittsburgh are among the U.S. cities with the highest Nielsen watch ratings for Tuesday's presidential debate in Philadelphia.

Donald Trump, on the other hand, didn’t adapt! He seemed unprepared. Or rather, prepared only to roll out his usual campaign points: attack his opponent’s record, burnish his own, paint a bleak picture. It was the classic strongman pitch: the world’s a mess and I’m the guy to fix it.