Former Minnesota Gov. Tim Pawlenty (R), who also recently announced his presidential exploratory committee, did not elicit strong opinions in the poll: 77 percent did not know enough about him or were undecided, while 20 percent had a favorable opinion and 3 percent had an unfavorable opinion. 93 percent of those polled did not have an opinion of U.S. Ambassador to China Jon Huntsman. That number was 88 percent for Indiana Gov. Mitch Daniels (R), 85 percent for Mississippi Gov. Haley Barbour (R), 76 percent for former Sen. Rick Santorum (R-Pa.) and 75 percent for Rep. Michele Bachmann (R-Minn.). Over half of the GOP voters polled also identified themselves as Tea Party supporters, the Times reports. The poll of 524 registered Republicans was conducted April 15-20 and has a margin of error of +/- 4.3 percent.