I guess we can call Mitt out for changing positions in order to do well in the primaries. But it is also true that we could do the same with almost ALL politicians. Kerry did it, Clinton did it, and Obama did it. McCain did it too. So have other Republicans and Democrats. This behavior is characteristic of all politicians with national aspirations who expect to appeal to multiple constituencies. So if we want to beat up Romney for doing it, we need to at least be fair and say “they all do it.” Is it something to be admired? No. Is it something to be expected? Yes.