"We must take every step to keep America safe, which means targeting and taking out terrorists while keeping guns out of the wrong hands," Casey said in a news release. "It's time for Congress to finally act on gun violence and ban military-style weapons, put limits on clips and magazine sizes, ban those on the terrorist watch list from purchasing firearms, and require background checks on all gun sales. We know that the shooter in Orlando used a high-powered weapon that allowed him to fire a large number of bullets in rapid succession."