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The network offered the mobile platform for free, to introduce the service, but the app faced complications as Democrats tangled Tuesday evening.

"There is a large mobilization of the Syrian army ... elite Hezbollah fighters, and thousands of Iranians who arrived in stages in recent days."

Chelsea Clinton didn't flinch when she was asked if Webb Hubbell was her biological father.

Here are some of the best reactions from Twitter as the Democratic candidates debated in Las Vegas.

The Republican presidential candidate also said the United States and Europe should extend sanctions against Moscow over its military aggression in Ukraine.

The Republican presidential candidate was sharing his thoughts on Tuesday's event in Las Vegas, despite saying it would be "very boring."

Ballistic missile tests by Iran are banned under Resolution 1929, which dates from 2010 and remains valid until the July 14 nuclear deal goes into effect.

The organization's president characterized recent debate as a "smokescreen" for a broader campaign against women's abortion rights.

The qualifying criteria for the debate will likely result in a smaller field of candidates on the main stage.

The 64-year-old used to be president of Burlington College in Vermont.

On issues from guns to energy to immigration, the Democratic presidential candidate's views can at times be contradictory.

The Democrat, a former U.S. senator from Virginia, is polling at only 2 percent. But he has a long background of public service.

“We have a force that is shaped for a different reality than we have today,” Maj. Gen. Duane Gamble told reporters Tuesday.

A data guide to the Democratic candidates' poll numbers in the last year and the cash they have raised since entering the 2016 presidential race.

Feeling the Bern? Not quite sure? Here are seven quotes to help you decide.

If Vice President Joe Biden shows up, send a friend out for more beer.

There is no universal standard for what is deemed reasonable conduct in police use-of-force cases, like last year's fatal shooting of 12-year-old Tamir Rice in Cleveland.

The state's new law for phasing out the use of antibiotics in livestock goes beyond federal regulations -- and could have a ripple effect in other states.

In recent months, Americans have increasingly searched for answers about Hillary Clinton on the Web, including for her height and age.

Lincoln Chafee has said he will address corporate tax evasion, end U.S. drone strikes and tackle climate change. He supports raising the minimum wage and a guest-worker program with a path toward citizenship for immigrants illegally in the country.

“They support amnesty. They support releasing criminal illegal aliens.”

An appeals court said Tuesday that the NYPD's surveillance program targeting Muslims was similar to how Japanese-Americans were targeted during World War II.

President Barack Obama crashed a California wedding, took some photos and still finished the 18th hole.

Could a Hillary Clinton-Kanye West ticket be on the ballot in the 2020 presidential election?

As one of the fastest growing eligible voter populations in the country, Hispanic voters are sought after by Democrats.

The al Qaeda Syrian affiliate said the Syrian regime was close to collapse, and called on supporters to step up attacks on territory held by the government.

Fighting continues on the main highway south of Kabul between Afghan government troops and the Taliban.

Some of those who are uninsured are qualified for Medicaid, while others are eligible for subsidies to offset the cost of Obamacare coverage.

Where did the missile come from that brought down MH17? That and other questions remained unanswered following an official report released Tuesday.