Moreover, as that new Gallup polling on social policy from a few days ago seems to evidence, his social positions are
way too extreme for the broader public these days. Whereas four or, especially eight years ago, being an outspoken opponent of abortion, same sex marriage, or whatever else was not a particular hindrance for a Republican, and probably helped in their primary field, it's trending toward being a straight up negative, even in some Republican primary contests. This is why Hucakabee also has zero chance. It's not just that he and Santorum have been completely outside the public arena since the last cycle; it's that the nation has apparently accelerated making a significant move away from their social stances over that time. They're considerably less electable in a national contest now than they were just four years ago. That stuff may still play in Oklahoma, of course, but it looks as though the era of a social issues Republican having legitimate national aspirations may be over. At least for the time being.
http://www.gallup.com/poll/183413/am...al-issues.aspx
I would not be surprised to see guys like Walker and Rubio moderate their stances on some social and moral matters, too, if their advisors are checking the wind. They might be risking being seen as culture war relics who will goose voter turnout on the Democratic side if they don't. Just in the last two days, Walker, unprompted, defended a mandatory ultrasounds as a prerequisite to abortion bill he signed (with a clumsy quote that made it sound like the reasoning behind his support of the bill was how cool ultrasound pictures were and everyone should get to have one), and Rubio went on a radio show and called same sex marriage a "clear and present danger" to Christianity. I don't think they want to be trumpeting those positions if they want to be President in 2017.