Results of the 2012 Democratic presidential primary in Oklahoma by county. The map was made on the website mapchart.net using data from the state of Oklahoma's website. <a rel="nofollow" class="external free" href="https://www.ok.gov/elections/Election_Info/Election_Results/2012-ElectionResults.html">https://www.ok.gov/elections/Election_Info/Election_Results/2012-ElectionResults.html</a>
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