By Richard Winger On August 6, U.S. Senator Pat Roberts (R-Kansas) criticized Greg Orman, the well-funded independent candidate who is running against Roberts. See this story. Most of the time, major party nominees for Governor or U.S. Senator won’t even mention their independent and minor party opponents.
Source: http://www.ballot-access.org/2014/08/u-s-senator-pat-roberts-attacks-his-independent-opponent/