WASHINGTON — Diplomatic triumph or travesty, America's relationship with one of its most intractable foes took two giant leaps forward this weekend when Iran released four Americans in a prisoner swap after locking in last summer's nuclear deal and receiving some $100 billion in sanctions relief.

BAGHDAD — The U.S. Embassy in Baghdad confirms that "several" Americans are missing in Iraq after local media reports that three Americans have been kidnapped in the Iraqi capital.

CHARLESTON, South Carolina (AP) —Hillary Clinton and Bernie Sanders tangled repeatedly in Sunday's presidential debate over who's tougher on gun control and Wall Street and who's got a better vision for the future of health care in America. It was the last Democratic matchup before voting begins in two weeks, and both sides were eager to rumble as polls showed the race tightening.

PORT-AU-PRINCE, Haiti — Haiti's opposition candidate for president is warning that if a runoff is held next weekend as scheduled it will be a big step back for the country's fragile democracy and lead to increased turmoil in the sharply divided nation.

HOLLIS, New Hampshire — After months of predicting a comeback for their preferred candidates, Republican establishment leaders now concede the first two contests on the presidential election calendar are businessman Donald Trump's and Texas Sen. Ted Cruz's to lose.

The Rev. Martin Luther King Jr. became one of America's most famous victims of gun violence when he was shot and killed at a Memphis hotel in 1968. As the U.S. prepares to mark the 30th anniversary of the holiday honoring King's birthday, a closer look at his life reveals a complicated relationship with guns.

PASADENA, California — Netflix says it will make a special effort to produce programming for children and families, with the streaming service offering 20 new programs in the category this year led by the Feb. 26 premiere of the "Fuller House" remake.