In response to:
Show me the tax returns.
As well he should. Independent fact-checkers have rendered multiple verdicts on the subjects of Bain, Romney and outsourcing, and Obama keeps lying, unfazed. As Chicago unleashes yet another negative ad premised on repeatedly discredited claims, Boston is firing back with a new spot of its own:
This isn't a bad offering, but I think it only grazes the critical point: Obama's ads aren't just relentlessly negative -- they're knowingly and...
Now hop along back to MediaNutters.