Protesters gathered in Ypsilanti Tuesday to call for the closure of immigrant detention centers.
People marched outside of Congresswoman Debbie Dingell's office on Tuesday.
They said lawmakers need to take immediate action to close immigrant detention centers and end family separation practices.
Jessica Prozinski [pruh-ZIN-skee] is a protest organizer.
"We are emotional. We are outraged. But we also need a plan. Phone calls and emails are not enough."
Prozinski says the rally in Ypsilanti was one of almost 200 taking place onTuesday in cities across the country.
A spokeswoman for Dingell says she plans to visit the U.S.-Mexico border in the next month.