The agonizing fact for Democrats this summer is that President Trump appears to be gaining ground on domestic and foreign policy, while his potential challengers are quarreling and mostly spinning their wheels. Trump is defying Congress, taunting allies and ignoring court rulings he doesn’t like — and seemingly getting away with it. Thursday’s anticipated executive order adding a citizenship question ...

Since the UK decided more than three years ago to leave the European Union, the nation’s savviest investors have succeeded by putting their money where Brexit matters least. Uncertainty about the date of Britain’s departure (now pushed back to October 31) and the terms of the divorce has meant purging the UK from their holdings or limiting them to investments ...

In 1960, South Korea had a total fertility rate of more than six children per woman, high enough to cause a population explosion. But as the country developed, this number dropped decade by decade: A country needs a fertility rate of about 2.1—a little more than one child per parent — to maintain long-term population stability. South Korea’s fertility is ...