How the prisoner swap could impact U.S.-Russia relations

CBS News contributor John J. Sullivan, a former U.S. ambassador to Russia, discusses the impact on U.S.-Russia relations following the prisoner exchange that freed Paul Whelan, Evan Gershkovich and others. Sullivan's new book, "Midnight in Moscow: A Memoir from the Front Lines of Russia's War against the West," reflects on his service in the Trump and Biden administrations.