Well, they also asked for preferences without the Lib. candidate:
Q4 The candidates for U.S. Senate are Democrat Kay Hagan, Republican Thom Tillis, and Libertarian Sean Haugh. If the election was today, who would you vote for?
Kay Hagan...................................................... 39%
Thom Tillis ...................................................... 34%
Sean Haugh.................................................... 11%
Undecided....................................................... 16%
Q5 Horse race with Haugh supporters asked whether they lean Hagan or Tillis:
Kay Hagan...................................................... 42%
Thom Tillis ...................................................... 38%
Not sure .......................................................... 20%
http://www.publicpolicypolling.com/pdf/2014/PPP_Release_NC_617.pdf