Alot of people forget that CO, is a working class, Latino state. It has voted with natl average in 2008& 2012. The Latino vote has come back hard against Trump, which was expected. But, Clinton is also keeping it close in Va & Ohio. Which is a little bit surprising, because Appalachia is a GOP stronghold, but not in Presidential years.
Obama got absolutely crushed in the southwestern corner of Virginia, the Appalachian part of Virginia. He won because of the urban vote around DC and Richmond.
A recent poll suggests that John Kasich would do better than other Republicans, in fact beating Hillary Clinton... but Kasich does less to offend well-educated people. Appalachia has been trending R for a long time.