HIGHLAND PARK, Ill. — Hundreds of people joined the group Moms Demand Action in Highland Park Tuesday night and organizers say they’re overwhelmed by the sheer number of people who want to get involved.

Before July 4 — the Deerfield-Highland Park chapter of Moms Demand Action had about 1,200 members.

One of the chapter’s co-leads told WGN News she herself dove in after Uvalde to revive the group, never expecting the next mass shooting in her own community.

“It was only three weeks ago that our lives were turned upside down,” co-lead Lauren Brown. “And we have all spent the days since, pick up pieces of our shattered hearts and understand how something so horrific could happen in our own community.”

Right now, the group’s focus is creating phone banks to build support for House Bill 5522 — which would ban assault weapons and high-capacity magazines here Illinois.

“Moms are relentless. Moms are dedicated and powerful because of the love that we have for our families. Nobody has time to do this but you have to make time because if your family is hurt if your family is injured if your family is killed, this is all for nothing,” said Lauren Brown. “I think people underestimate the power of moms some times, but we’re here, we’re going to fight, and we’re going to make some change.”

The meeting for new members began at 7 p.m. on Tuesday and parade shooting survivors spoke.

“What felt like long drawn out minutes was just seconds,” survivor Brittany Robleski said. “The terror and screams erupted.”