Republican Congressional candidate John Archer will be stopping in Knoxville today. The Bettendorf native will be at the Coffee Connection at 5:30 this afternoon to meet with citizens and answer questions. Archer is a senior legal counsel at John Deere. He is being challenged by Dan Dolan of Muscatine in the Republican primary June 5th. On the Democratic side, incumbent representative Dave Loebsack is being challenged by Iowa State Senator Joe Seng.