State Sen. Ed Murray, a Seattle Democrat, confirmed this afternoon a Slog report that he's considering running a write-in campaign for Seattle mayor.

"I quite honestly don't know what I'll do," he told me. "I have to put the pieces together here and see what's possible."

Murray said labor and other interest groups are apparently behind a poll in the field asking about his viability as a write-in candidate against last week's primary winners, Mike McGinn and Joe Mallahan.

Both are political newcomers and, at least in the primary, were opposed by business and labor groups.

"I'm hearing from a lot of people in the community, who I respect, who feel like they aren't getting the choices they need," he said. "It's obvious to me that there's some frustration."

Murray's political consultant in his Senate race, Christian Sinderman, said he's talked to Murray about the poll and his consideration of a write-in campaign.

"There are a lot of folks who aren't happy with their choices," Sinderman said, "and there's a lot of concern that the primary vote was simply an anti-Nickels vote. There's kind of a vacuum in terms of having a positive agenda for the future of Seattle." Sinderman didn't work for Mayor Greg Nickels in this campaign, but has been aligned with the mayor in the past.

Murray says he'll know more in a few days. Sinderman points out that in a year such as this, when Nickels was unexpectedly tossed in the primary, "what's one more surprise?"