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The South Carolina senator has pushed a hawkish foreign policy message and has been highly critical of Donald Trump throughout the campaign.

He's a political spouse like no other, who has so far been confined to cameos. That will change in January, though one analyst says the best thing he can do is "stay out of the way."

In an interview with NPR's Steve Inskeep, Obama spoke at length on the subject of identity. The question of who we are as Americans, Obama said, has been a focus since the country's founding.

Many kids reject or cough up the bitter adult-size pills for TB. The new ones dissolve in water and come in precise kid-size doses.

Last week, a hung jury failed to come to an agreement on whether William Porter was guilty of involuntary manslaughter and other charges. Porter was the first of six police officers to be tried.

Are you a wise global giver? Take our quiz and see how much you do (and don't) know.

Now that recreational use of marijuana is legal in four states, law enforcement officials are looking for quicker ways to test drivers for excessive pot use. Entrepreneurs are taking on the challenge.

It's the first launch since a Falcon 9 rocket exploded in June, and the first recovery of a spent booster for SpaceX. Previous attempts were close but ended in failure.

The hanging death of 28-year-old Bland in her jail cell was ruled a suicide, but family and activists challenge that claim.

Everyone has a set of genes that keeps the body on a 24-hour rhythm. As we get older, though, the main clock can malfunction. Researchers say a backup clock may try to compensate.