As I recall, George W. Romney was a staunch critic of the JBS and claimed hat Goldwatrer had cozied up to the Birchers. Romney refused to endorse Goldwater in 1964, and Romney won in MI.
In 1964 (Convention) George and Mitt walked out on Goldwater in protest, in the 1980s Mitt dropped his republican registration in protest of President Reagan, Romney also has quotes like this in his past as he explains the Romney family traditional, political beliefs.
"I'm not a partisan politician. My hope is that, after this election, it will be the moderates of both parties who will control the Senate, not the Jesse Helmses."