(CNN) - Sen. Lisa Murkowski vowed Wednesday "it ain't over yet," as she pinned her hopes for a comeback in the Alaska Republican primary on thousands of absentee votes still to be counted.
In a political stunner, Murkowski finds herself trailing little known challenger Joe Miller for the GOP nomination by nearly 1500 votes, 50.8 percent to 49.2 percent. But the results aren't final, with absentee and mail-in votes still out.
Recounting Alaska's recent history of close elections, she told reporters in Anchorage "we know for a fact it ain't over until it's over. There's much, much more to be counted."
Murkowksi said she was "still digesting" the meaning of Tuesday's vote, but said there is "no second guessing" or doubts about her strategy. "I'm very proud of the campaign," she said.
As reporters pressed for insights, the Senator said she was more focused on matters like taking her son to school, walking her dog and bicycling in the warm weather. "We're continuing on through the process, and remain optimistic."
But Murkowski allowed that the political climate had changed since poll numbers suggested she had a big lead. "Clearly there was a shift," she said. "Whether it was kind of the anti-incumbent feedback you get in the lower 48 [states], I don't know yet."
She dismissed questions over whether her options could include launching an independent bid for the Senate in the fall if she loses, "It is way, way, premature to even be taking about that."
Anchorage television station KTUU first reported Murkowski's ten-minute gathering with reporters on its web site.