Former White House lawyer must testify in impeachment probe, judge rules
The judge said she was not addressing the separate issue of whether McGahn could withhold information by citing executive privilege, which is intended to keep confidential the nature of discussions between a president and close aides.
Did you even read the article you posted or just the part that provided a misleading narrative?
He has to show up. However, he could plead the 5th or use executive privilege to not testify after showing up. Her order just means he has to appear before Congress. Get it?