On September 16, Public Policy Polling released a poll for several races in Kansas. The results for U.S. Senate are: independent Greg Orman 41%; Republican incumbent Pat Roberts 34%; Democrat Chad Taylor 6%; Libertarian Randall Batson 4%; undecided 15%.
See here for the full results, including gubernatorial results that show the Libertarian at 7%. If the Libertarian running for Governor, Keen Umbehr, does get as much as 5%, the Libertarian Party will qualify for its own primary for the next four years. No party, other than the Democratic and Republican Parties, has had its own primary in Kansas since 1954. Before 1955, all qualified parties in Kansas nominated by primary. The 1954 primaries were for the Democratic, Republican, Prohibition and Socialist Parties. Thanks to PolitcalWire for the link.