Delay's defense was that he had nothing to do with it and at the time didn't even know that employees were doing it.
Those who worked for Delay pled guilty to the crime.
*************
I don’t remember the details but one name comes to mind that did plead guilty was Tony C. Rudy.
Rudy pled guilty to conspiring with GOP lobbyist Jack Abramoff to corrupt public officials.
That plea was after he left DeLay to become a lobbyist.