Vice President Biden called the manager of a custard shop outside of Milwaukee, Wis., a "smartass" after the man asked him to lower taxes. Biden made the comment Friday after the Kopp’s Frozen Custard shop manager told him that his dessert would be on the house if he lowered taxes. "What do we owe you?" Biden is heard saying in footage captured by WISN-TV. "Don’t worry, it’s on us," the manager replied. "Lower our taxes and we’ll call it [the custard] even." "Why don’t you say something nice instead of being a smartass all the time?" Biden said a few...