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 .
The authors visit with the gory details, and compare the situation in other countries with the 2016 election here.
