Update 1:28 p.m. - Mystery partly resolved. Rossi spokeswoman Jennifer Morris emailed to say Rossi "is filming a commercial today." No further detail. Original post follows:

Republican Senate challenger Dino Rossi is traveling somewhere today.

But he won't say where.

During a noonish conference call with reporters to update his campaign (big news: he said his rallies are packed and things are going "exceptionally well"), Rossi was asked where he was calling from.

"We're out traveling all over right now," Rossi said.

He repeated that statement when pressed on whether he was traveling out of state. His spokeswoman, Jennifer Morris, jumped in and said "the question has been answered." (Even though it hadn't.)

Morris refused to clarify where Rossi was later. "He's traveling," she repeated.

So why not just answer the question?

Easy guess is that Rossi is out of state for a fundraiser. He didn't exactly publicize past fundraising jaunts to Washington D.C., Texas, and New York.