" When norms of mutual toleration are weak, democracy is hard to sustain. If we view our rivals as a dangerous threat, we have much to fear if they are elected. We may decide to employ any means necessary to defeat them - and therein lies a justification for authoritarian measures. Politicians who are tagged as criminal or subversive may be jailed; governments deemed to pose a threat to the nation may be overthrown. "

― Steven Levitsky , How Democracies Die: What History Reveals About Our Future