Voters this month 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 the candidate started and still owns along with an investment firm.
Oberweis, 67, is also known for his previous five failed campaigns. That included unsuccessful attempts to run for U.S. Senate. He won a state Senate seat in 2012.