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CNN's panel of political analysts and contributors discusses what to expect from the first presidential debate.

Senior Adviser for the Donald Trump Campaign, Sarah Huckabee Sanders, discusses what to expect from the debate.

CNN's Jim Acosta reports.

CNN's panel of political analysts and contributors discusses what to expect from the first presidential debate.

CNN's Dana Bash reports.

Hillary Clinton's Campaign Manager, Robby Mook, talks about what to expect before the debate.

CNN's Sara Murray and Jeff Zeleny report.

The Colombian government is signing a peace agreement with the FARC rebel group. The two sides have fought since 1964. CNN's Rafael Romo and Zain Asher have more.

Pres. Obama participates in a blanketing ceremony at the White House Tribal Nations Conference with representatives from 567 federally-recognized tribes.

CNN's Shane O'Donoghue meets the people behind the growing social network All Square Golf and visits a company set on improving the TV golf viewing experience.

On "Parts Unknown," Anthony Bourdain and chef Eric Ripert visit China's Sichuan province, where they go back to school to learn more about the region's fiery cuisine.

Former Israeli Prime Minister Ehud Barak says the rhetoric around the US election, as well as elections around the world, has become more about style than substance because of reality shows and social networks.

Ursula Burns, CEO of Xerox, is backing Hillary Clinton for President and says she would be better for business.

Donald Trump and Hillary Clinton will debate for the first time on stage together, but are not new to debating.

Fareed asks Ukrainian President Petro Poroshenko about Trump's assertions about the Russia-Ukriane conflict and about going head-to-head with Putin.

Erin Burnett asks CIA Director John Brennan what words he would use to describe North Korean leader Kim Jong Un.

Oscar winner Jennifer Lawrence was discovered at 14 and rose to become Hollywood's highest paid actress.

Erin Burnett asks CIA Director John Brennan if he thinks Russian President Vladimir Putin would use a nuclear weapon.

Erin Burnett asks CIA Director John Brennan if a woman will ever be in charge of the CIA.

Joel Wit from Johns Hopkins University speaks to Christiane Amanpour as North Korea moves ahead with its nuclear missile program.