Retired Army Lieutenant Colonel Alexander Vindman has seen (and heard) a great deal in his experiences in public service. He became a household name as a key witness in Donald Trump’s impeachment hearings in 2019. His memoir out August 2021, "Here, Right Matters: An American Story," shares insight into the lead up and events following the infamous call at the center of the trial between former U.S. President Trump and Ukrainian president Zelensky. Vindman joins to discuss that, immigrating to the US, serving in the military, his take on global relations, and what’s next for him.