This item has been updated with a story on our homepage.

Update, 1:55 p.m.: Republican nominee Joe Miller just told reporters that he will not be answering any more questions about his personal background for the remainder of the campaign.

He made the statement at an impromptu news conference after today's debate at the Anchorage Chamber of Commerce. He took no questions and immediately walked out of the room.

We'll have updates shortly.

From David Hulen in Anchorage --

Lots happening with the U.S. Senate campaign today:

> Another candidate forum/debate is happening now at the Dena'ina Center in Anchorage, this one on business issues in front the Anchorage Chamber of Commerce. We have reporters and photographers there, and will a story and multimedia up later in the day.

> New questions are being raised about Republican nominee Joe Miller's time as an attorney for the Fairbanks North Star Borough. Specifically, did he do political work while on the borough clock and using borough resources? Several news organizations, including the ADN, have been asking for various borough records about Miller's time working there; today the Alaska Dispatch filed a lawsuit seeking release of Miller's employment records.

The Miller campaign initially scheduled a news conference for 11 a.m. at the Anchorage campaign headquarters to address the issue. That's been pushed back to 1:30, after the Chamber of Commerce debate, according to the campaign. We'll have full coverage.