04/07/2010 05:12 am ET | Updated May 25, 2011

Kirk Giannoulias Poll: After Illinois Senate Primary, Mark Kirk Up Six Percent Over Alexi Giannoulias

Republican Mark Kirk holds a modest 46% to 40% lead over Democrat Alexi Giannoulias in the race for the Illinois Senate following Tuesday's party primaries.

In December, Giannoulias was up by three points over Kirk. In October, the two men were tied at 41% each. In mid-August, Kirk held a modest 41% to 38% lead over Giannoulias.

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