I see that as a possibility. Think about how slimy the Rats are, devising a scheme to smear a sitting president, for which it is illegal to publicize their machinations. I could see someone "taking a bullet" figuratively for the President to stop the Democrat's ploy. Makes my head spin. The Rats operate like the KGB... I guess they were quick learners in that regard.
The talk of 30 year sentencing is certainly beyond the pale. It shows Fitz is vindictive (and he used the word vindicated himself).
IF Libby does get sentenced I wouldn't be surprised to see a pardon SOMETIME before the administration leaves.