The Discoverer Deep Seas drill ship sits off the Louisiana coast in the Gulf of Mexico in this 2006 photo. President Obama's plan expands eastward the area of the Gulf where drilling is already permitted. Alex Brandon/AP hide caption

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In 2002, five years after a group of black farmers sued the U.S. Department of Agriculture, these men traveled from Manning, S.C., to join a protest outside the USDA. Mark Wilson/Getty Images hide caption

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Sarah Palin speaks at a Tea Party rally in Searchlight, Nev., on Saturday. Thousands of Tea Party activists were in attendance. Robyn Beck/AFP/Getty Images hide caption

itoggle caption Robyn Beck/AFP/Getty Images