Mulvaney Drops Lawsuit Plans, Won't Testify In Impeachment Inquiry

Mick Mulvaney initially planned to file a lawsuit to determine if Congress can compel senior presidential advisers to testify in the impeachment inquiry. However, he decided to follow the White House and Justice Department's directive not to testify. Mulvaney was subpoenaed but was advised by White House counsel not to appear, citing constitutional immunity. He attempted to join a lawsuit by Charles Kupperman, seeking clarity on compliance with subpoenas versus White House instructions. When it became clear that the court would not favor his motion, Mulvaney opted to file his own lawsuit.

What was Mick Mulvaney's initial plan regarding the impeachment inquiry?

What legal argument did Mulvaney's attorneys present regarding his testimony?

Who filed a lawsuit that Mulvaney sought to join, and what was the purpose of that lawsuit?

What was the outcome of Mulvaney's motion to join the lawsuit?

What instructions did Mulvaney's attorneys say he would follow regarding his testimony?