including grand jury information, nor does it expand to to don mcgahn testify before this committee. >> now, this happened at a hearing with john dean, the former nixon white house counsel as part of the democrats' investigation in hearings to try to shine a spotlight over the findings of the mueller probe. of course, john dean has no firsthand knowledge about what happened with the mureller prob, but jerry nadler saying it's true that fact witness have said ordered by the white house to not appear before this committee, but warning, we will get them, saying he's ready to go to court to get don mcgahn and others to comply with their subpoenas. >> manu, thanks very much. manu raju up on capitol hill. a key figure in that watergate scandal, whose testimony helped bring down former president richard nixon appeared before congress today as manu was just noting, saying there are parallels to be found in the mueller report. let's go to our senior white