Students who survived last week’s shooting at a Florida high school vowed Sunday to hold politicians who accept money from the National Rifle Association (NRA) accountable, and shared plans for a protest march next month.

“My message for people in office is you’re either with us or against us. We are losing our lives while the adults are playing around,” Cameron Kasky, a student who survived the shooting, said on CNN’s “State of the Union.”

“This isn’t about the GOP, this isn’t about the Democrats, this is about us creating a badge of shame for any politicians accepting money from the NRA and using us as collateral,” he added.

Nikolas Cruz, 19, faces 17 counts of premeditated murder after he allegedly opened fire at Marjory Stoneman Douglas High School in Parkland, Fla., on Wednesday, killing 17 and wounding several others.