This story was published in partnership with The 19th, a nonprofit, nonpartisan newsroom reporting on gender, politics and policy. Congressional lawmakers this week revived an effort to enact significant gun safety laws for the first time in more than 25 years by introducing bills to establish a universal background check system that has broad support from the public. The bills introduced Tuesday in the House and Senate would extend current federal background check requirements to transactions conducted by unlicensed and private sellers. The gun safety group Giffords estimates that 22% of U.S. gun owners purchased their last firearm without completing a background check. Polling shows that more than 90% of Americans support a universal background check system.