Taint his report? How do you "taint" something that's bad to begin with? Liberal bias created and drove the report.
Yes, that is a great question.
How does one "taint" a forgery, anyway?
But Thornberg, like the good RINO he is, gave Dan the one CYA sentence he has been repeating in every interview, that their pathetic report "found no bias" in his hit job on the President. Even the old hands at CBS have been saying that is a crock.