Christine O'Donnell, center, answers questions from the mediawhile at a Sussex County (Del.) Republican Committee Picnic on Sunday. Jessica Kourkounis /Associated Press hide caption

toggle caption Jessica Kourkounis /Associated Press

Murkowski, center, shakes hands with supporter Jennifer Johnson at the senator's campaign headquarters in Anchorage on Tuesday. Michael Dinneen/Associated Press hide caption

toggle caption Michael Dinneen/Associated Press

Miller Vs. Murkowski

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