Wonkette has a good catch: look at this picture of Romney speaking to Univision.
That is not Willard's usual look, is it? It looks ... browner.
As though Romney was doing Ace Ventura: "In order to win the Mexican ... you must BE the Mexican!".
Or as though Romney was still thinking "Sure would be easier if I were Mexican".
Or maybe he just had a secret meeting with John Boehner and John is just rubbing off on him.
But I think this is just the pander-o-matic performing its usual function. Even Willard's skin is inauthentic. The witty NegSpin dubs this "Tandering", and I agree.