Families in the U.S. and much of the world are having so few babies, national populations are set to shrink and age. The trend is changing American politics and fueling the rise of global populism.

President Trump has begun releasing letters announcing new tariff rates that would go into effect on Aug. 1.

Elon Musk says he is launching a new political party. It comes after Musk's explosive breakup with President Trump. Musk has been critical of Republicans' support for Trump's "One Big Beautiful Bill." ...