The conspiracy theory at the heart of the impeachment inquiry

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Rudy Giuliani alleges that Joe Biden pushed to fire Ukraine's prosecutor general to protect his son Hunter, who sat on the board of a company under investigation. But Ukrainian anti-corruption advocates say that narrative is 100% false. “It was the consensus of all civil society in Ukraine" that the prosecutor had to be fired because he was a roadblock to reform, says anti-corruption campaigner Daryna Kalenyuk.