[Cowboy Bob]

Wait until a Republican (Cruz/Walker) is elected President. Then, rather than impeach, I think that there should be an investigation into his adoption of his children.

Make Roberts resign. No need to impeach him.

He apparently has some skeletons in the closet and is being blackmailed. He has been compromised. Need to get rid of him.

[Paladin2]

It could be that Traitor Roberts is just plain evil. He attended Law School after all.