A New Year’s Eve confrontation at a Democratic presidential candidate’s office in northeast Iowa has led to an arrest. A Decorah man was arrested Monday night after an incident at the Hillary Clinton campaign headquarters. Decorah police were called to the office on a report of a man with a knife. Authorities say 42-year-old Christopher Farris had left the scene prior to officers arriving but was located a short time later with a hunting knife in his possession. He was charged with carrying weapons and third-degree harassment.