Gingrich says Romney sounds phony

From Fox News:

NEWT GINGRICH: I think there’s nothing Mitt Romney can say that does sound fake and doesn’t sound phony. He made his case all year. he did all he could to cause Trump to lose Utah. He called Trump vicious and vile things. He described him in language that is not possibly compatible with being together. And the idea that now that Trump has won that Mitt would suddenly decide to issue a mea culpa… Speaking for most of the Trump supporters, we will support President-elect Trump in whatever he does, We will be enormously disappointed if he brought Mitt Romney into any position of authority.

Sounding fake and phony is just a small part of the problem. How can you trust Romney or consider him a Republican, when he worked to help Hillary Clinton defeat Trump?