The bill, which will almost certainly pass the House but will face a steep climb in the Republican-controlled Senate, would require background checks on the purchases of nearly all firearms, including those sold at gun shows and over the internet. There would be limited exceptions, including for law enforcement officers and for guns transferred between close family members.
Polls have shown that a vast majority of Americans — by some estimates, 90 percent — support universal background checks for all gun purchases. Many Democrats, including Representative Lucy McBath, a freshman from Georgia whose son was shot and killed at a Florida gas station, were elected last year after promising to address gun safety.
“Today we take a decisive step to help save lives right away,” said Representative Mike Thompson, Democrat of California and the bill’s chief sponsor, adding, “From public polling to the ballot box, the American people have spoken up and demanded action.”