Mueller found child porn on this guy and knew he could force him to testify to anything Mueller wanted.
Nader was used to undermine the credibility of those denying working with the Russians. I am sure pressure was then put on those people to turn against Trump with Mueller saying he has witnesses (Nader) that contradict your testimony.
This is the underhanded, disgusting tactics of the cowardly former Marine Robert Mueller.
Mueller has done this before, so it fits his modus operandi.
PS: Child porn is not important to Mueller....getting Trump was more important.
Mueller has zero credibility. Hes a despicable pettifogger whose M.O. is exactly what you describe.
Innocent men sit in prison right now.