So the Goodwin Procter lawyer representing backers of the blockbuster tax-cut referendum says he doesn’t believe Attorney General Andrea Campbell’s office was acting in bad faith when it suggested word changes to the proposed ballot question – word changes that turned out to be inaccurate and cited by the SJC when it deep sixed the tax-cut proposal on Thursday. But the fact remains it was the AG’s responsibility, not the backers and their lawyers’ responsibility, to get the ballot wording right – and the AG’s bumbling office screwed that up, big time.   … Setting aside Howie Carr’s patented vitriol, his summary of the summary controversy is fair enough: “The obvious question is, did AG Campbell make this, uh, mistake, because of a) gross incompetence, b) corruption or c) both.” … Howie votes for both. I vote for incompetence. And that’s being generous.