"In Wyoming there's no question for us that Hillary Clinton would be devastating — and far, far worse than Donald Trump. We've gotta unify behind him and make sure Hillary Clinton's not elected." Link
Hardly an enthusiastic endorsement
You should not be expecting enthralled endorsements from the Republican old guard that were so trashed by Trump during the primaries. It should be appreciated that most aren’t actively campaigning against Trump. Only subtle back-stabs.