The latest ad from the Rick Perry camp nails Mitt Romney on a charge that has haunted him during his entire political career; namely, flip-flopping and being inconsistent on issues depending on who he happened to be talking to at any given moment. Take a look. Mitt Romney’s Race to the FlopThe Romney camp tries explaining the flip by changing the subject, which they have been able to do fairly successfully throughout the campaign so far. But The flip-flopper charge is probably the most damaging to Romney because it gets at the level of trust and character, and whether voters...