Newt Gingrich's offers free advice: Don't use Bain to attack Mitt Romney

"Fundamentally, guys. You cannot use Bain. Moon, instead." (Eric Thayer/Reuters) Don't you just love Newt Gingrich?

Gingrich did not exactly recant, but did acknowledge the ineffectiveness of one attack he used on Romney ' the private equity firm Bain Capital. When Gingrich accused Romney and Bain of taking over companies and downsizing them at the expense of workers, he was widely condemned by fellow Republicans and eventually backed off.

This week the Obama campaign released an ad along those same lines. Gingrich said his experience should be a lesson to Obama: 'that dog won't hunt.'

Gingrich said the attack will not resonate in voters' minds as they think: 'You want me to be mad because in one company somewhere Romney may have in fact been involved in someone losing their job while you as president have been involved in millions of people losing their jobs?'

Newt Gingrich must have a pretty hazy memory if he believes anything he said. He used Bain before one primary and one primary alone: the South Carolina primary. The result? Aside from Georgia, South Carolina was the only state Newt Gingrich won. And he won it big, by double-digits, coming back to clobber Mitt Romney who had led each of the first 17 polls taken in January. Bain wasn't the only thing that put Gingrich over the top, but it helped him'and it helped in a Republican primary. And the reason it helped him is that it's a real issue'and a real problem for Mitt Romney.