[cnn-photo-caption image= http://i2.cdn.turner.com/cnn/2010/images/06/08/art.murkowski.0608.gi.jpg caption =" Alaska Sen. Lisa Murkowski will make a decision by Friday on whether she’ll launch a write-in campaign for re-election."](Updated at 8:20 p.m. ET)
Washington (CNN) - Sen. Lisa Murkowski says she'll decide by Friday whether to try an admittedly "difficult" write-in candidacy this fall to keep her seat. Murkowski was defeated in last month's Republican primary by once longshot Joe Miller, who enjoyed the backing and support of Tea Party activists and former Alaska Gov. Sarah Palin.
Murkowski confirmed in a written statement Tuesday that she will not seek a spot as the Libertarian Party candidate for Senate. The party's nominee said this week he would not step aside following a meeting with her.
In her statement, Murkowski said, "I cannot in good conscience seek the Libertarian nomination" despite advisors and friends urging her to "find a way to get my name printed on a ballot at all costs."
"As disappointed as I am in the outcome of the primary and my belief that the Alaska Republican Party was hijacked by the Tea Party Express, an outside extremist group, I am not going to quit my party. I will not wrap myself in the flag of another political party for the sake of an election at any cost."
She said that only leaves her "with the more difficult task of running a write-in campaign should I decide to continue in the race".
After conceding the election two weeks ago. Murkowski had planned to stay out of the race, but aides said she decided to reconsider.
"I will continue to seek advice from my fellow Alaskans about what is best for the state's future and announce a decision by Friday," she said.
Murkowski, the daughter of a former Alaska senator and governor, has returned to Washington as Congress came back into session this week.
The Tea Party Express, the national Tea Party organization that endorsed Miller and spent nearly $600,000 in support of his candidacy, calls Murkowski a "sore loser"
"Not all the hanging chads in the world can undo the fact that she lost. After thirty-years of having a Murkowski as Senator, Alaskans voted for change. The fact that she dishonors the decision of Alaska's voters shows nothing but contempt for the people of Alaska," said Levi Russell, Communications Director of the Tea Party Express, in a statement.
"It's time for her to start doing the right thing by volunteering to help Joe Miller win this election for the Republican Party in November," added Russell.
(Updated at 8:20 p.m. ET)