The poll, which was shared exclusively with POLITICO, found former Arkansas Gov. Mike Huckabee as the nominal leader of the pack, taking 15 percent of the vote in a nine-candidate field.
But that was only 3 points better than Ryan, Florida Sen. Marco Rubio and New Jersey Gov. Chris Christie, each of whom took 12 percent. Bush had 11 percent, followed by Rick Santorum at 10 percent and former Secretary of State Condoleezza Rice at 9 percent.
Bringing up the rear were Kentucky Sen. Rand Paul at 5 percent and Sarah Palin at 4 percent.
More from POLITICO’s Alexander Burns here.