Bernie Sanders’s overwhelming victory in the Nevada caucus is sending shock waves through the American political system, perhaps nowhere more than on MSNBC. The hosts and guests of the cable news network made no effort to hide their dismay at Sanders’s victory. Even Brian Fallon, national press secretary for Hillary Clinton in 2016 and not someone very favorably inclined to Sanders, was taken aback. “MSNBC sure has a lot of commentators who hate Sanders,” he tweeted.