MADDOW BLOG

The Flint Water Plant tower is seen, Friday, Feb. 5, 2016 in Flint, Mich. Michigan Gov. Rick Snyder on Friday defended how his office responded to an email flagging a potential link between a surge in Legionnaires' disease and Flint's water, saying an aide asked for further investigation but a state agency did not bring forward the issue again. (AP Photo/Carlos Osorio)

The Flint Water Plant tower is seen, Friday, Feb. 5, 2016 in Flint, Mich. Michigan Gov. Rick Snyder on Friday defended how his office responded to an email flagging a potential link between a surge in Legionnaires’ disease and Flint’s water, saying an aide asked for further investigation but a state agency did not bring forward the issue again. (AP Photo/Carlos Osorio)