The storm flooded low-lying areas, knocked out power and forced the cancellation of several major events and hundreds of flights.

In China, A.I. doomsday warnings can feel distinctly Western or like a ploy to stop Chinese A.I. companies from trying to overtake their U.S. rivals.

The president amplified negative social media comments about Representative María Elvira Salazar of Florida, a move that drew a rebuke from at least one Republican.