It wasn't too long ago that Mitt Romney was so eager to tout his experience as CEO of Bain Capital that he didn't even mention that he had once been governor of Massachusetts. Romney talked about Bain as if it were the only thing on his resume. And on Monday after the Obama campaign released its anti-Bain ad, the Romney campaign responded with a video touting a Bain success story.

However, 48 hours later, Romney's Bain record is still under attack ... but he has suddenly gone silent. According to Politico, not only did Romney fail to respond to those attacks in a speech earlier today ... he didn't even mention the word Bain.