Rocket Scientist and part time faux journalist Chris Mathews, once again gives us a Sterling example of Fake News when he wrongly described McGahn giving information to the Mueller investigation as a waiver of executive privilege, with the result that McGahn can no longer claim Executive Privilege in refusing to testify to Congress. The fool equated waving of Executive privilege as to losing ones virginity in that once it is lost or waived, it cannot be reclaimed.
What the blond buffoon fails to understand is that a member of the Executive Dept (McGahn) giving testimony to another member of the Executive Dept (Mueller) in no way involves or evokes a waiver of Executive Privilege since both parties are members of the Executive Dept. Executive privilege is invoked when the two parties are members of
different branches of government, not between members of the same branch.
Just another example of Fake news from, perhaps, the stupidest member of the faux-media.