CQ reports:

Sen. Lisa Murkowski is strongly considering a mounting a November write-in campaign to keep her seat and could make an announcement as soon as tomorrow, according to a source with knowledge of the situation.

Running as a write-in candidate appears to be Murkowski’s last remaining option. The Senate Republican Conference Vice Chairwoman met with Libertarian Party nominee David Haase on Tuesday to discuss taking his spot on the ballot, but according to a party spokesman, even if Haase dropped out, the party’s executive board — which last week voted against allowing Murkowski on the ballot — does not appear amenable to changing its decision.

Should Murkowski pull the trigger on a write-in campaign, GOP sources say she would face opposition from the National Republican Senatorial Committee. The NRSC endorsed Joe Miller immediately after Murkowski conceded the primary, and the GOP committee intends to stick with the Fairbanks attorney and provide him with the full weight of its backing.