Fourteen states, a third of all delegates and an emerging race between Sen. Bernie Sanders and former Vice President Joe Biden. Here's what to know about the 2020 contests.

Four million Syrian refugees are living in Turkey, and another million displaced Syrians are trapped between Russian-backed Syrian forces and the Turkish border. Turkey says to head for Europe.

For the first time in U.S. history, the federal government is trying to count most households through the Internet for the once-a-decade census, but the rollout has been fraught with risks.

For Texas Democrats, the state's Super Tuesday primary could help define the shape of a party that's on the rise after more than two decades of being shut out of power.