They told their version of Flint's water crisis.
"How do we sit by and let an entire city be poisoned? How do we let all these children be hurt?" asked LeeAnne Walters, who testified about the fight to get clean water for her family.
"At every twist and turn in this, we have been the citizens," said Walters. "The outcry of us has not been heard. Nobody cared. Nobody's city. Nobody's state."
She talked about the effects of lead poisoned water, especially to her 14 year old son and five year old twins.
"One's 56 pounds, one's 35," explained Walters. "He hasn't grown in a year. He's still having issues with the anemia and realizing at 5 years old why there's a difference between them? Yes. It keeps me up at night. Yes. It makes me emotional."
Plus the thousands of other children that have been exposed.
"We cannot take away this exposure," said Dr. Mona Hanna-Attisha with Hurley Medical Center. "I don't have a lead pill or lead antidote that will take this away, but we can wrap these kids around with everything they need to promote their development."
Dr. Mona Hanna Attisha also urged lawmakers to take action now. She says nutrition should be a top priority.
"This is not a throwaway a generation," she explained. "Our children are going to be fine. But they're going to be even better if we invest in them now, and if we provide additional resources, the additional wrap around resources, so that we can mitigate the extent of this exposure."