The activists and celebrities flocked to Flint this weekend to speak about the water crisis.

Davison native and filmmaker Michael Moore held a rally at Flint City Hall on Saturday, saying that the water crisis is "not a mistake. Ten people have been killed here because of a political decision. They did this. They knew.” He also called for the arrest of Governor Snyder.

His rally in Flint came just hours after President Obama declared a state of emergency for Flint.

On Sunday, national civil rights leader Reverend Jesse Jackson spoke at Heavenly Host Baptist Church in Flint, saying, "We should have tape around the city because Flint is a crime scene. The people of Flint have been betrayed.”