Biography: Ron Johnson, a Senator from Wisconsin; born on April 8, 1955, in Mankato, Minn.; graduated University of Minnesota, B.S., 1977; studied business administration, University of Minnesota, 1977-1979; plastics manufacturer; accountant; elected as a Republican to the United States Senate in 2010 for the term ending January 3, 2017; chair, Committee on Homeland Security and Governmental Affairs (One Hundred Fourteenth Congress).