By Kristen Johanson

PHILADELPHIA (CBS) — Dozens gathered on the Art Museum steps last night to protest gun legislation failing in DC this week.

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Lisa Espinosa’s son was shot and killed 3 months ago.

“My son was part of the sacrifice of the laws not working right now,” Espinosa’s said.

Cherie Ryan is a member of Mothers in Charge. Her son died, after being shot by an assault weapons.

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“I am standing on the steps, in memory of his son, his best friend and all the other young men and women who have been senselessly killed with these kind of guns,” she said.

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They joined activists and others who lost loved ones to gun violence, urging politicians to pass gun control legislation in the wake of the Orlando massacre.

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“What’s going on now, it’s not working. So politicians need to step up to the plate, and make a difference, and make change,” Ryan said.