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As the political planning for the day after Mosul's liberation comes under increasing scrutiny, Iraqi Kurdish Pres. Massoud Barzani speaks with Christiane Amanpour.

A New York City police officer shot and killed a 66-year-old woman while responding to a call at a Bronx apartment, police officials said.

New CNN polls show Clinton, Trump in tight races in NV, NC and Ohio. CNN's John King zeros in to show why.

Troops are discovering tunnels dug by ISIS throughout the region as the battle for Mosul continues. CNN's Arwa Damon takes a walks through one of these tunnels.

We looked back at the 25 primary and general election debates so you didn't have to.

Secretary Jeh Johnson warns hackers are attempting to infiltrate election agencies in the U.S. before the presidential election. CNN's Jim Sciutto reports.

Scan Pyramids, an international research collective, say they have discovered two previously-unknown cavities inside the Great Pyramid of Giza.

Researchers from the University of Michigan led an excavation that unearthed the most complete ice age mastodon skeleton in Michigan since the 1940s.

California votes on marijuana again. CNN's Stephanie Elam has the details.

Firefighter and paramedic Derek Dee was responding to a routine medical emergency call, only to find out it was for his father.

While hackers might not swing the vote, they could sow discontent. CNNMoney's Laurie Segall speaks with cybersecurity experts to understand vulnerabilities in the voting process and what hackers are saying on the dark web.

Sid Khan is the head coach of Earlsfield Boxing Club in south London. A coach of Rio 2016 silver medalist Joe Joyce, he speaks to CNN about amateur boxing.

CNN's Anderson Cooper presses Donald Trump's campaign manager Kellyanne Conway on her criticism of Hillary Clinton, asking why, if Hillary is such a "bad candidate," Trump can't beat her.

Prince Turki bin Saud bin Al-Kabeer of Saudi Arabia has been put to death for the shooting death of a man during a "group quarrel."

China's economy grew by 6.7% in the third quarter. CNN's Matt Rivers explains why this can't last.

At least a dozen people were injured when a police van drove into a crowd of protesters outside the US embassy in Manila. CNN's Alexandra Field reports.

CNN's Dr. Sanjay Gupta has been following the story of conjoined twins Jadon and Anias and had a chance to catch-up with their parents.

Speaking at the sentencing of Matthew Apperson, George Zimmerman says that Apperson had absolute disregard for human life when he fired a gun at Zimmerman during a road rage incident.

Matthew Apperson has been sentenced to 20 years in prison for shooting at George Zimmerman during a road rage incident.

A Los Angeles police detective who was investigating sexual assault allegations against NBA star Derrick Rose has been found dead in an apparent suicide, authorities said.