US President Joe Biden made a passionate call for tougher gun restrictions Friday, marking the one-year anniversary of the first significant piece of federal firearms legislation in nearly three decades but declaring it was only an "important first step." He urged voters to defeat lawmakers who resist. "Prayers are fine. They're important ... but it's not going to stop it," Biden said, pressing Congress to take more aggressive steps to restrict access to guns. "You have to take action. You have to move. You have to do something."