Heh! Not a lot of difference here... I dispute the argument and not only think that it is specious but false as well.. After all, Romney has made so many turns in his political career that it becomes difficult to pinpoint where he stands today. If Michelle points that out, more power to her.
I was restating the concept of cognitive dissonance which commonly afflicts those passionately committed to any movement whether it be religous, political and, even, scientific.