If conservative Vorarlberg managed to vote for the leftist Green candidate Van der Bellen by 59-41, after voting for conservative candidate Kurt Waldheim 75-25 in 1986, I can also see Trump losing Utah. Mormons are really pissed-off by his talk and seem to think Clinton is the lesser evil ...
I think so but Utah voters will need to be presented with Clinton if she wants to win the state. Run ads, send surrogates... though I think going to campaign there in person may be a waste of time and time better spent in a swing state.
She could send Sanders, he won the caucus.