Suppose Romney had a change of heart. Or, maybe he was always right of center, but moved to the left to win reelection in Mass, (with secret plans to move back right after the election). He didn't win, BTW, which may have taught him something about what the people want and being true to yourself. GWB pretended to be a conservative in his first term to get reelected, and then brought us Prescription Drugs in his second term.
So, maybe Romney learned a lesson, there, or maybe he sees where the country is headed and realizes there needs to be some big changes to save this country. I'm willing to give him a chance.
Let me put it to you this way ~ if Romney ever had a Conservative thought it'd frighten him so much he'd have a fatal heart attack on the spot.
The fact he's still walking around means he has not had any such thoughts.