Republican challenger Dan Sullivan has pulled to his biggest lead yet over Democratic incumbent Mark Begich in the final Rasmussen Reports survey of Alaska’s U.S. Senate race.

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The survey of 887 Likely Voters in Alaska was conducted on October 27-30, 2014 by Rasmussen Reports. The margin of sampling error is +/- 4 percentage points with a 95% level of confidence. Field work for all Rasmussen Reports surveys is conducted by Pulse Opinion Research, LLC. See methodology.