Four years ago today, an "emergency manager" appointed by Michigan Governor Rick Snyder flipped the switch that poisoned the water supply in the City of Flint.

Four years ago today, an "emergency manager" appointed by Michigan Governor Rick Snyder flipped the switch that poisoned the water supply in the City of Flint. pic.twitter.com/gylu7ZBqeG

— Rachel Maddow MSNBC (@maddow) April 25, 2018