The democratic swing in Utah would have been significantly more if Bernie Sanders was the nominee instead of Hillary.
Also McMullin pulled a lot of previous Obama 08 voters and a lot of former Matheson and current McAdams voters.
The Utah swing was Trump related but I could see Utah becoming more purplish as time goes on. Utah is very Republican due to LDS tribal voting but less conservative than it appears.
Utah gives driver's licenses to illegal immigrants and subsidizes housing for the homeless, very odd for such a deep red state.
