"A judge’s declaration of a mistrial on Thursday in the John Edwards campaign finance case was a new setback for the Justice Department’s public integrity section..."

"... a once-vaunted watchdog that has been trying to rebuild itself after its botched prosecution of Senator Ted Stevens four years ago," writes Charlie Savage.

The unit’s performance has been faulted by nonprofit groups that seek to limit the influence of money in politics. Melanie Sloan, director of the Citizens for Responsibility and Ethics in Washington, said the Justice Department deserved “to get slammed” for what she portrayed as undertaking a risky prosecution against Mr. Edwards that relied upon a novel interpretation of campaign finance laws, even as it shied away from more traditional corruption cases.

“The cases that they are deciding to prosecute, and not prosecute, reflect an incoherent strategy,” she said. “At some points they are willing to be incredibly aggressive, like with John Edwards, and on the other hand they are overly cautious in refusing to prosecute people like John Ensign and Don Young.”

Much more at the link. Read it.