President Donald J. Trump has wide latitude to enact the sweeping changes to U.S. foreign policy that he has promised, but his executive authority is constrained by congressional legislation, treaty …

Ebrahim Raisi was more loyal to hard-line Supreme Leader Ali Khamenei than previous presidents, and whoever succeeds him is likely to be just as conservative.  

The sprawling U.S. water system is central to the nation’s economy, but chronic underinvestment, increasing demand, and the consequences of climate change have revealed the system’s weaknesses.  

Global risks–including Chinese overcapacity–have increased, but government intervention should seek to minimize trade-offs.