This year’s champion had a record win against the backdrop of a simulated market downturn.

From San Jose, Calif., to Washington, D.C., cities are advancing AI training for staffers or members of the public. Mesa, Ariz., recently launched its own AI education initiative to support adoption.

Mayor Zohran Mamdani made a surprise visit to the White House to meet with President Trump. He suggested they had found common ground on building more housing in New York City. The mayor also said he ...