Article Photos: Ryan's challenger campaigns against ... no one



Republican vice presidential candidate, Rep. Paul Ryan, R-Wis., and his wife Janna, left, get off their campaign plane upon their arrival at Austin Straubel International airport in Green Bay, Wis., Wednesday, Oct. 31, 2012. (AP Photo/Mary Altaffer)

Republican vice presidential candidate, Rep. Paul Ryan, R-Wis., and his wife Janna, left, get off their campaign plane upon their arrival at Austin Straubel International airport in Green Bay, Wis., Wednesday, Oct. 31, 2012. (AP Photo/Mary Altaffer)