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Protesters clashed with police outside a US Senate candidate debate Wednesday in Louisiana that included former Ku Klux Klan member David Duke.

Donald Trump is neck-and-neck against Hillary Clinton in New Hampshire, according to a new poll released Thursday.

An elephant is killed every 15 minutes.

This NASA animation shows the rapid decline in the Arctic's perennial sea ice from 1984-2016.

After dealing with months of stress-inducing election drama, many of us are feeling understandably tense and anxious -- myself included. That's why I'm sharing five of my favorite yoga-based ways to tame tension and regain peace of mind.

Aroldis Chapman just lost the lead, and the Chicago Cubs were in big trouble.

The Chicago Cubs celebrate their first World Series win in 108 years, defeating the Cleveland Indians 8-7 in Game 7. CNN's Andy Scholes reports.

Ben Zobrist, who went 10-for-28 (a .357 average) with two doubles, a triple, two RBIs and five runs in the series, was named World Series MVP.

An adviser to James Comey, Daniel Richman, on Wednesday night told CNN's Anderson Cooper that the FBI director was just doing his job in releasing information about emails discovered on Anthony Weiner's computer.

Obama warned against FBI "leaks" and "innuendo" in his first public comments about the agency's decision to disclose its new email review.

President Barack Obama returned to North Carolina Wednesday more insistent than ever the state's college students and African-Americans cast ballots for Hillary Clinton, telling them "the fate of the republic rests on your shoulders."

There's a royals watch on Meghan Markle.

One of the US Navy's newest littoral combat ships can't catch a break.

Missing plane Malaysia Airlines MH370 was plunging towards the sea with no one in control when it made its last satellite communication, new analysis reveals.

For more than a century, the pin-back campaign button has been as an iconic tool in American politics.

Two police officers were killed in two separate ambush shootings near Des Moines, Iowa, authorities said.

Hillary Clinton has money to spend and she's putting it into TV ads.

At a campaign rally in Pensacola, Florida, Donald Trump tells supporters he's got to be "nice and cool" in the remaining days before the presidential election.

Donald Trump once again singled out NBC News journalist Katy Tur by name during a rally on Wednesday, reigniting concerns about reporters' safety at Trump rallies.

A federal jury resumed deliberations Wednesday in Newark, New Jersey, in the criminal case related to an incident that is widely known as Bridgegate.