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For the second time in two months, Donald Trump has installed new leadership in his campaign. But here's a little secret: it ain't the staff. Never is.

Hillary Clinton is very fond of one number: 10 million.

If inspiration is the first step in travel, the journey starts here.

A distraught college student attacked a couple in their Florida home, stabbing them to death and biting the face of the male victim, authorities said.

The Cold War is suddenly back as a hot topic in American politics.

Hundreds of passengers were rescued Wednesday from a burning ferry off Puerto Rico.

The search for the kidnapped son of the world's most notorious drug lord has been narrowed to four states in Mexico, a senior Mexican law enforcement official tells CNN.

Go ahead. Admit it. If you are a Western woman who watched Olympic swimmer Fu Yuanhui tell the world that she was having her period but that it was no excuse for losing, you were shocked that such a frank, public, feminist comment came from a Chinese woman, of all people.

What was meant as a joke about Usain Bolt and Ellen DeGeneres swiftly went awry on Twitter.

Amidst the billions of stars in the Milky Way, astronomers have witnessed the evolution of one as it exploded in what's known as a classical nova after hibernating for years, according to a new study (PDF). It is the first time the transition of a white dwarf star with a low and unstable mass-transfer rate to a classical nova eruption has been observed, study author Przemek Mróz said.

For anyone who wants a Republican in the White House in 2017, the situation looks bleak.

Donald Trump shook up his campaign for the second time this summer, appointing pollster Kellyanne Conway as his new campaign manager on Wednesday.

CNN's Nick Paton Walsh sees firsthand what Rio's homicide detectives have to deal with when trying to solve murders in this Olympic city.

Walking down the aisle on your wedding day is something all brides-to-be dream about. But the actual walking part is what a Georgia woman focused on when she got married.

Mic drop.

Everyone who knows Simone Biles knows that she loves Zac Efron, so it was a huge deal when the actor flew to Rio to surprise her at the Olympics.

I've lived and worked in the Middle East for a decade, providing medical care, emergency relief and economic opportunity for refugees.

If US soccer star Alex Morgan could have written her own script for the 2016 Summer Olympics in Rio de Janeiro, a stunning upset to Sweden in the quarterfinals would not have been part of the narrative.

Green Party presidential nominee Jill Stein has been waging an uphill battle for name recognition as she pursues her White House bid. But as she emerges in the public eye -- she is participating in a CNN-hosted town hall on Wednesday -- so have some of the retired medical doctor's past controversial comments on vaccines, her concerns about internet use being linked to poor health and GMOs.

A look back at the most memorable moments from Britney Spears' Video Music Awards performances.