How do you figure that, look at him before he re registered Republican in 1993, and ask yourself what was so despicable about President Reagan that Mitt Romney felt the passion to take such a step as dropping his Republican registration in the first place, because of Reagan in the 1980s.
Why before he was on any-one's radar was he only giving money to, and even doing fund raising, solely for liberal democrat candidates?
Mitt Romney was always liberal before 2006, when he gave up on being reelected in Massachusetts and started running for the Republican primary.