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Extended interview: Lt. Col. Alexander Vindman (Part 1)

06:33

In an exclusive TV interview with Lester Holt, Lt. Col. Alexander Vindman — a key witness in President Trump’s impeachment hearings — discusses his dismissal from the National Security Council and the call he heard between Trump and Ukraine's president in July 2019. An NSC spokesperson responded, saying: “This is a disgruntled former detailee, seeking publicity, who is making allegations that are without merit.“