Veep, Joe Biden says in the video.: “Use your voice! It matters. We need you.' He is urging people to pay attention to Monday’s Senate votes on gun safety measures, saying lawmakers will only change gun laws if concerned voters “make yourselves impossible to ignore.”“ “On Monday and beyond, make yourselves impossible to ignore,” he continues. “You know that by stepping up, your action has the potential to create a domino effect. Have the courage to do it. We have done it before. We can do it again.”After every mass shooting, we’ve waged campaign after campaign to turn our grief into action, each time thinking maybe, just maybe, this will be the one that breaks through,” Biden says in a new video that responds to a popular White House petition calling for a ban on AR-15 rifles.