Palin endorsement has Rep. Larsen, Koster campaigns sparring

"Former Alaska Gov. Sarah Palin's endorsement of a 2nd Congressional District Republican has caused a written sparring match this 2010 election season.

Palin endorsed Snohomish County Councilman John Koster on Saturday, June 12, via Twitter, where she called him a "pro-family, pro-business, rock-solid commonsense conservative.""