For some reason, Colorado makes me the saddest of states moving away from Republicans. I want the GOP to absolutely own the Mountain West, which is an absolutely awesome region that manages to carry its conservatism in a very classy way.
While I can certainly appreciate this sentiment, there should be left-leaning states in all regions as well, so that people who hold political ideology as an important anchor can live throughout the country, like IL in the Midwest and VA in the South.
In any case, the sharp turn of CO is not only due to demographic shifts, but also the GOP going haywire at the worst possible time.