Both parties spend big on SW Washington House race

Longtime incumbent Democrats faces tough, expensive challenge in the blue-collar 19th District

For a view of the convoluted ways that money moves around in Washington politics, look no further than the $500,000-plus that has flowed into the fight for one of the last rural seats held by Democrats in the Washington Legislature. 

Rep. Brian Blake, D-Aberdeen, has represented the 19th District, which stretches from Longview west to the Long Beach peni…