According to the Seattle PI, Gregoire's campaign says the bus was rented from a Washington company. If that's so, I guess that makes them like thousands of other Washington residents who buy and license their vehicles in Oregon and Idaho to avoid Washington's onerous taxes and fees.
Below is a press release from the Washington State Republican Party:
Gregoire Driving An Oregon Bus on Re-Election Tour
Washington's Small Businesses Can Relate – They've Been Thrown Under The Gregoire Bus For The Past Three Years
Bellevue, WA - Gov. Christine Gregoire has been conducting her statewide re-election tour in a bus with Oregon license plates (there is an Oregon license plate on the front and back of the bus and a British Columbia tag on the front). A photo of the Oregon license plate on the rear of the Gregoire bus is available online here. Washington State Republican Party Chairman Luke Esser issued the following statement in response:
"Gov. Gregoire has been making it harder and harder for businesses to survive here in our state for three years, so it's no surprise that her campaign hired a bus with Oregon license plates to save money. The symbolism of Gov. Gregoire's bus tour couldn't be plainer. The business failure rate in the state of Washington is one of the worst in the country, and the Oregon license plates on Gov. Gregoire re-election bus express very well how hard it is for businesses to survive in our state. Time and time again small businesses have been thrown under the bus by Gov. Gregoire, and until Dino Rossi has been elected governor our business climate will only continue to get worse."