Seems a little too good to be true. McKenna definitely needs a stronger lead right now, considering Republicans tend to over poll in Washington this early.
Not exactly sure what's wrong with Reichert. Between his oddly small 2010 victory against a nobody (he did better in 2008 even) and his terrible polling statewide, he doesn't seem to be doing too well. I've always thought he was a terrible person and a terrible Congressman, so it's hard for me to gauge what might have changed.