Associated Press exec editor Sally Buzbee on Iran, impeachment, Iowa, and the future of news

Sally Buzbee, the top editor of the AP for the past three years, tells Brian Stelter about the news agency's top priorities and challenges, from covering the environment to combating misinformation. She tells how the news outlet is protecting journalists in Iran; fact-checking Donald Trump; and educating the public about polling ahead of the 2020 election. Buzbee also discusses the AP's future and the importance of collaborations.

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