First of all: He's already announced he's not running
Second of all: He's finished in Massachusetts (look at his approval there). He could do something there as a "Liberal Republican", but nobody going to believe that again. Following his flops, he's unelectable there
Only an idiot can believe Romney have a future in Massachusetts
^this. Romney left office with about a 34% approval rating and isn't particularly popular there. Even if you believe that Romney is a political chameleon with no core beliefs, him running as a liberal or even a moderate Republican just isn't credible at this point.
