Sen. Lisa Murkowski has signaled that she doesn't plan to give up even after losing Alaska's Republican primary last month. The incumbent senator's two options for reelection are running on the Libertarian Party ticket, which "is looking less likely," or launching a write-in candidacy, a spokeswoman for Murkowski said in Alaska Wednesday.

Murkowski is strongly considering the latter option and could make an announcement as soon as Thursday, CQ Politics reported. Another source familiar with Murkowski's deliberations contends that she has definitely decided to remain in the race and challenge the other contenders -- Republican candidate Joe Miller, an Alaska attorney and former judge, Democrat Scott McAdams and Libertarian candidate David Haase -- in the general election.

Murkowski (R-AK) conceded Alaska's Republican primary in late August to Tea Party-backed candidate Miller, who collected the majority of votes. Miller, a conservative, was endorsed by 2008 vice president contender, former Alaska governor and Tea Party star Sarah Palin, who has been in a bitter rivalry with the Murkowski family for years.

While write-in candidates normally don't have a much of a chance of winning, Murkowski may have better odds. Both McAdams and Haase are weak candidates, and the outcome of the Aug. 24 Republican primary may have been the result of Miller's enthusiastic core supporters and fewer mainstream Republican voters because of polls showing Murkowski winning comfortably. Also, Murkowski still has a large campaign fund.

One important factor could be just how hard Palin campaigns in her home state for Miller and against the incumbent.

Murkowski, meanwhile told the Associated Press, "I'm not a quitter, never have been. And I'm still in this game," which could be a very interesting one.

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