Voters will decide the Republican nominee for U.S. Senate. It's a race between two suburban businessmen, Doug Truax and Jim Oberweis. The Oberweis name is recognizable for the Illinois based dairy business his family started and still owns along with an investment firm. Oberweis, who is 67, is also known for his previous five failed campaigns. He won a state Senate seat in 2012. Illinois Public Radio's Sean Crawford talked with Oberweis about some of the issues and why he decided to seek higher office this year.