Put the United States 2016 election aside for a moment and consider the rest of the world.
Countries that we once thought of as reliable democracies are taking turns for the autocratic and nationalistic. Even Germany has far-right groups in parliament for the first time since the demise of the Nazis.
Steven Levitsky and Daniel Ziblatt track the longstanding erosion of political norms in their book How Democracies Die.
The authors visit with the gory details, and compare the situation in other countries with the 2016 election here.