There are dozens of possible contenders for the 2020 Democratic presidential nomination. Who will take lead? Joy Reid and her panel of expert guests give their top picks. Plus, the Mississippi U.S. Senate run-off is becoming even more contentious, as a new report reveals that Republican candidate Cindy Hyde-Smith attended a "segregation academy" as a young woman. Joy and her guests discuss Democrat Mike Espy's chances of winning in this typically GOP stronghold. We also bring you a very special visit from Santa Larry and his wife, Mrs. Claus, who together sing a song written especially for Joy Reid. All this and more on this Sunday's edition of AM JOY on MSNBC.