On her radio show today, Laura Ingraham grilled Gov. Rick Perry about his criticism of Mitt Romney’s career as a “vulture capitalist” at Bain Capital. Especially unhelpful to Perry’s case against Romney was the fact that he received donations from private-equity firms in previous campaigns, as Ingraham pointed out. Here’s a partial transcript (the exchange occurs about 4:16 minutes in) and audio below. Ingraham: You know I am going to raise the issue of Texans for Public Justice. Their analysis of your campaign contributions since 2000 [indicates] you have received more than $7 million from private-equity firms and private investment...