Historians estimate 20 million or more people died under Stalin's regime in the former USSR.

LIVE NOW: Historians estimate 20 million or more people died under Stalin's regime in the former USSR. @Princeton's Stephen Kotkin speaks about the horrors of communism. https://t.co/Whcx9iMeQV #CatoLectures pic.twitter.com/gGmQ0gZsE6

— Cato Institute (@CatoInstitute) November 1, 2018