My guess Mitch Daniels....he HATES social/Christians Conservatives, as does Stein.
Bingo! Hating Christians has become the pasttime of the gutter elites and that includes Mr Stein.
Stein is(or at least was) a big time pro-lifer, and also made a film against the theory of evolution, so I don’t think he hates social conservatives. I have no idea what motivates him, to be honest. Truly an enigma.