A single piece of unverified intelligence became the centerpiece of a Republican attempt to impeach President Biden.Michael S. Schmidt, an investigative reporter for The Times, explains how that intelligence was harnessed for political ends, and what happened once it was discredited.Guest: Michael S. Schmidt, an investigative reporter for The New York Times, covering Washington.Background reading: 

• Ignoring warnings, Republicans trumpeted a now-discredited allegation against President Biden.
• Analysis: An informant’s indictment undercuts Republicans’ impeachment drive.

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