The spirited back-and-forth may explain why the tariffs case took months for the court to resolve, and it exposed rifts that could prove meaningful for Trump as well as future presidents.

The work of numerous mathematicians culminated in the discovery of hyperbolic geometry; today, thanks to virtual reality, it is possible to glimpse it beyond its formulas ...

The chief justice’s opinion hinged on a legal principle called the “major questions doctrine” — the same doctrine that was used repeatedly to block the Biden administration’s regulations and orders.