Koster slightly ahead of Larsen

In Washington's 2nd Congressional District, Republican challenger John Koster holds a slight lead over Democratic incumbent Rick Larsen as of this hour.

Koster's lead is very slim, so this race is close. Koster leads in Island County, Skagit County, and Snohomish County, while Larsen is holding up in San Juan County, Whatcom County, and King County.

We'll provide an update as fresh numbers become available.