And, the President could tell Harry Reid and Nancy Pelosi and his super PACS to knock it off as well, but hasn't, and won't.
The reason being is that politics is a smarmy business, engaged in by smarmy people who will do and say anything to achieve a goal. And you know why? Because people believe everything they hear that validates their own prejudices. That's why we have multiple threads about Romney's taxes.
You can pick and choose which ones you find offensive and which ones get a pass, but in reality, they're all just wrong.