Republican presidential candidate Rep. Ron Paul, R-Texas, addresses the crowd during the North Dakota caucus Tuesday, March 6, 2012, in Fargo, N.D. (AP Photo/Charles Rex Arbogast)

Associated Press
Republican presidential candidate Rep. Ron Paul, R-Texas, addresses the crowd  during the North Dakota caucus Tuesday, March 6, 2012, in Fargo, N.D. (AP Photo/Charles Rex Arbogast)
Republican presidential candidate Rep. Ron Paul, R-Texas, addresses the crowd during the North Dakota caucus Tuesday, March 6, 2012, in Fargo, N.D. (AP Photo/Charles Rex Arbogast)
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