The consistency in the results of Oregon gubernatorial elections is rather amusing. The last 5 (2002, 2006, 2010, 2014, 2016) have all been narrow single-digit Democratic victories; Republicans can consistently come close to taking the governorship but never do quite manage it.
Vosem, as is overwhelmingly common, has basically the correct answer...
Kate hasn't been able to perform very well in small town and rural Oregon, let alone blue-collar cities like Albany, Keizer, Roseburg, and Coos Bay....
It's difficult to see her creating the national type of Democratic majority coalition, if she can't even perform decently in communities in her own state that are somewhat receptive to certain types of Democrats.
Granted this could all well change by 2020, but at this point Wyden or Merklely would like play better on the national stage, considering at least they have both been able to create winning majority statewide coalitions in Oregon that are not disproportionately based upon Portland and the suburbs of Portland....