Jack Cunningham, a Republican, has been County Clerk of Kane County, Illinois, since 2002. Kane County is one of the larger Illinois counties, and includes Aurora, Elgin, and Geneva. He tried to win the Republican nomination for U.S. House in this month’s primary, but a State Appeals Court ruled on March 15 (only five days before the primary) that his petition was invalid. Although his name was still on the ballot, votes for him were not counted.

Now he says he may run as an independent candidate. The Republican who challenged him, incumbent Judy Biggert, is also a Republican. The Democratic nominee, Bill Foster, is a former member of Congress who was defeated for re-election in 2010. See this story.