Backfire

Suppose that the Kossacks succeed in pushing a large number of Democrats to vote for Romney in the primary tomorrow.  Wouldn’t this taint any Romney victory and allow his opponents to turn his criticism of McCain’s New Hampshire victory back on him (i.e., that he won because of non-Republican votes)?  Wouldn’t it reinforce every criticism of Romney as insufficiently or unreliably conservative?  Given the necessarily Michigan-centric, dare I say populist, campaign he is running at the moment, won’t any victory in Michigan be a pyrrhic one, in which he discredits the claim that he is a “full-spectrum conservative”?  Doesn’t his policy record already discredit him?