Sarah Palin and Romney lead the pack of Republicans battling for the right to challenge Obama in the November 2012 election.
Palin, who has not said whether she will run, had the support of 22 percent of the Republicans surveyed and Romney had 20 percent.
Representative Ron Paul, a libertarian Republican from Texas, and former pizza executive Herman Cain were tied for third with 7 percent each.
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The poll, conducted Friday through Monday, surveyed 1,132 adults nationwide by telephone, including 948 registered voters. The margin of error is 3 percentage points.
http://www.reuters.com/article/2011/06/08/us-usa-campaign-poll-idUSTRE75749V20110608
