The White House said it has no plans to cooperate with the House impeachment probe after blocking the deposition of a U.S. ambassador seen as central to the Ukraine controversy.
Some FBI electronic surveillance violated the constitutional privacy rights of Americans swept up in a foreign intelligence program, a surveillance court has ruled.
Trump said the U.S. wasn't abandoning Kurdish fighters in northern Syria, amid blowback over his decision to pull troops from the area ahead of a planned Turkish incursion.
A Senate investigation of Russia's social-media influence criticized U.S. tech giants, with new attention on Google and YouTube.
Prospects for a Brexit deal appeared to fade further as British and EU officials traded barbs over who is to blame for the stalemate.
The Supreme Court weighed whether civil-rights law forbids employers from discriminating against gay or transgender employees.
The U.S. is imposing visa restrictions on Chinese officials linked to the abuse of Muslim minority groups.
A U.S. cosmologist and two Swiss astronomers shared the physics Nobel.