While McCain’s pick of Palin — and the resultant flood of press coverage — was painted as a game-changing moment in the campaign, there is a little evidence that the Alaska governor has fundamentally altered the contest.

Nearly six in ten voters in each of the four states said that the vice presidential picks “have little to do with” their presidential vote. That number was highest in Wisconsin (65 percent) and lowest in Colorado (58 percent).

Despite the lack of influence on voting patterns, both Palin and Delaware Sen. Joe Biden were widely regarded as strong picks by voters in all four states. Palin’s high water mark was in Wisconsin where 57 percent said she was a “good choice” while just 33 percent said she had been a “bad choice.” In both Colorado and Minnesota, 52 percent of those tested said Biden had been a “good choice” as vice president.