April 17-20, 2014 - Survey of 1,144 Wisconsin voters:
Hillary Clinton.................................................. 50%
Paul Ryan ....................................................... 45%
Hillary Clinton.................................................. 51%
Scott Walker ................................................... 44%
Hillary Clinton.................................................. 50%
Rand Paul ....................................................... 39%
Hillary Clinton.................................................. 50%
Jeb Bush......................................................... 39%
Hillary Clinton.................................................. 50%
Mike Huckabee ............................................... 38%
Hillary Clinton.................................................. 49%
Chris Christie .................................................. 36%
http://www.publicpolicypolling.com/pdf/2014/PPP_Release_WI_424.pdf