video.foxnews.com/v/607994974000…
ua.usembassy.gov/news-events/?s…
Biden visited Ukraine on March 31, 2016 two days later ua.usembassy.gov/news-events/pa…
Is it possible that Biden threatened Poroshenko in that telephone call, later conflating telephone call with March 31 visit?
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en.interfax.com.ua/news/economic/…
burisma-group.com/eng/media/atto…