An assassin, Navalny, secret talks: How the U.S.-Russia prisoner swap came together

WASHINGTON — It was December 2022 and the U.S. government's chief hostage negotiator had just delivered Brittney Griner back to America after her 10-month imprisonment in Russia. Roger Carstens went to his hotel room anticipating a quick snooze after several sleepless days and had just put his head on the pillow when the phone rang.