As(s)pen? Weird. Nixon took it by 20 points in ‘68.
Hippie douche phase, perhaps. They seemed to fall under the spell of the nutty Hunter S. Thompson. He apparently narrowly lost a 3rd party race for Sheriff there in 1969. It hasn’t voted GOP for President since 1984 and is heavily moonbat now with all the trendy, rich Californians flooding in. Sad to see once reliably GOP Colorado so polluted by evil.