Former Vice President Joe Biden’s name has appeared regularly in discussions about the controversial situation with Ukraine. What was Biden trying to achieve during his visit to Ukraine in 2015, and what is his connection to the controversy surrounding the July 25 phone call between President Trump and Ukrainian President Volodymyr Zelensky?

Colin Kahl is co-director of the Center for International Security and Cooperation and a senior fellow at FSI. From 2014 to 2017, he served as deputy assistant to President Barack Obama and national security advisor to Biden. In this episode, Kahl provides an inside look into what really happened between Biden and Ukrainian officials during that time period.