“From February 17-23, 2010, the bipartisan research team of Fairbank, Maslin, Maullin, Metz & Associates (FM3) and Public Opinion Strategies (POS) completed 2,400 telephone interviews with likely voters in the Midwest: 400 each in the states of Illinois, Iowa, Michigan, Minnesota, Ohio and Wisconsin. The margin of sampling error for the results in each state is +/- 4.9%.”
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