The FBI is investigating its voter registration efforts in several states, amid allegations that almost a third of the 1.3 million cards it turned in are invalid. And yesterday, a former employee of Acorn testified in a Pennsylvania state court that the group's quality-control efforts were "minimal or nonexistent" and largely window dressing. Anita MonCrief also says that Acorn was given lists of potential donors by several Democratic presidential campaigns, including that of Barack Obama, to troll for contributions.