It is time we introduce “Humanity’s Best Exam”—a benchmark that strives to capture a model’s capacity to address public policy problems and otherwise serve the general welfare.

President Donald Trump has filed a lawsuit against media mogul Rupert Murdoch and The Wall Street Journal over the newspaper’s reporting on ties between Trump and Jeffery Epstein.

On a visit to the Tasman region, the prime ministers will not yet say whether the government will provide more funding for flood relief. Christopher Luxon visited the battered region on Saturday, ...