Jimmy Kimmel / Rachel Maddow
"In political science terms, there's what's called the 3.5% Rule, which is that if you look at authoritarian regimes of various kinds all over the world over the last century, once you have 3.5% of a population protesting nonviolently against a dictator or an authoritarian, that is essentially an unstoppable force," she explained. "It's not that much larger a number than what we're already seeing in the streets against Trump."