Eastern and Western Washington

Some state senators in that state we all know and love have floated a proposal to split Washington in two along the Cascades. We get these sorts of proposals every ten or fifteen years in California, too: people from rural parts of Northern California (everything north of Bakersfield/San Luis Obispo, including San Francisco, Sacramento, and Lake Tahoe) object to all the water that gets sent down to LA and propose cutting them off. Nothing ever happens, of course, because something like 40% of the state lives in the Santa Barbara-LA-San Diego corridor, and another 40% in the Bay Area (who, on the whole, don't care what happens to the lakes up in the mountains other than Tahoe).