The Politico has a report on Mitt Romney’s rehab plan to boost his low poll numbers and win the Republican presidential nomination. Some of the ideas — such as gaming the complicated rules governing primaries like California’s — strike me as worthwhile, others fraught with peril for the candidate.

For example, it makes sense for Romney to emphasize his policy differences with John McCain and Rudy Giuliani. But every time he does so, he risks returning the discussion to the fact that most of these differences are of recent vintage. So anytime he tries to focus the debate on his superior conservative credentials, his opponents have an opportunity to refocus it on charges of flip-flopping and unreliability. Maybe he has a plan to address that problem too.