♪ won't back down ♪ >> gabby knows the devastation that gun violence has wrought on communities across the country. she's so critical to this fight for gun safety. ♪ no i won't back down ♪ >> what are you hoping to achieve with gun safety legislation? >> background check now. >> exactly. 90% of americans support universal background checks. >> it is my great privilege to be joined by former u.s. congresswoman gabrielle giffords, the cofounder of one of the most prominent gun safety organizations in the united states. >> stopping gun violence takes courage. the courage to do what's right. the courage to be responsible. >> on this vote, the yeas are 219, the nays are 210. the bill is passed. >> reporter: the u.s. house of representatives approved a pair