"He is withering on the vine," Shanahan said about Young. "He is backing off some of his positions and I think he's really done damage to his own credibility and the government's case."
Lowell's contention that Edwards' motive was to hide the pregnancy from his wife also undercut the prosecution, Shanahan said.
"I think Mrs. Edwards was on top of his finances and the reason he couldn't write the checks is because he didn't want her to find out about it. And the reason I think the defense thinks that is important is because it goes against their theory that he was doing this to help his campaign. So, it's a critical point," he said.