Hillary Clinton.................................................. 46%
Marco Rubio ................................................... 45%
Hillary Clinton.................................................. 46%
Rand Paul ....................................................... 43%
Hillary Clinton.................................................. 45%
Scott Walker ................................................... 41%
Hillary Clinton.................................................. 47%
Mike Huckabee ............................................... 42%
Hillary Clinton.................................................. 46%
Chris Christie .................................................. 41%
Hillary Clinton.................................................. 48%
Ben Carson..................................................... 42%
Hillary Clinton.................................................. 49%
Rick Santorum................................................ 42%
Hillary Clinton.................................................. 49%
Ted Cruz ......................................................... 41%
Hillary Clinton.................................................. 49%
Jeb Bush......................................................... 38%
...
Scott Walker ................................................... 37%
Bernie Sanders ............................................... 32%
Scott Walker ................................................... 36%
Jim Webb........................................................ 29%
Scott Walker ................................................... 38%
Martin O'Malley............................................... 30%
Scott Walker ................................................... 36%
Lincoln Chafee................................................ 27%
...
Public Policy Polling® surveyed 799 registered voters, including 385 Democratic primary voters and 334 Republican primary voters, from May 21st to 24th. The margin of error for the overall survey is +/- 3.5%, for the Democrats it’s +/-5.0%, and for the Republicans it’s +/-5.4%. 80% of interviews for the poll were conducted over the phone with 20% interviewed over the internet to reach respondents who don’t have landline telephones.
http://www.publicpolicypolling.com/pdf/2015/PPP_Release_PA_52815.pdf