Nation

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The final six GOP candidates sparred in Saturday's ninth Republican presidential debate, taking on topics, including foreign policy, the Islamic State, 9/11 and replacing Justice Scalia. Jon Greenberg of Politifact joins William Brangham to fact check what they said.

The pileup, which involved 50 or more vehicles, including roughly a dozen tractor-trailers, happened around 9:30 Saturday morning, and it was likely caused in part by the extreme winter weather that has hit much of the northeastern United States.

Feb 13

U.S. Supreme Court Justice Antonin Scalia dies at 79

Antonin Scalia, the influential conservative and most provocative member of the Supreme Court, has died, leaving the high court without its conservative majority and setting up an ideological confrontation over his successor in the maelstrom of a presidential election year.