In a new Public Policy Polling survey, Arizona Gov. Jan Brewer is leading the pack in the Republican primary, having built credibility with conservative voters since December. But that all changes if Maricopa County Sheriff Joe Arpaio, a hard-liner on immigration, were to enter the race.
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Without Arpaio, Brewer gets 38% of the vote, followed by her closest challenger at 19%. Her approval rating among conservatives is 60% -- not surprising, as the poll was conducted in the days after she signed a harsh new immigration law. A Rasmussen poll released this week showed that her approval numbers statewide got a huge bump after she signed the law, bringing her to 56% approval.