The American Republic stands threatened by the first overtly anti-democratic leader of a large party in its modern history—an authoritarian with no grasp of history, no impulse control, and no apparent barriers on his will to power. The right thing to do, for everyone who believes in liberal democracy, is to gather around and work to defeat him on Election Day. Instead, we seem to be either engaged in parochial feuding or caught by habits of tribal hatred so ingrained that they have become impossible to escape even at moments of maximum danger.