Mulvaney Files To Join Suit Against House Subpoenas

Politico reports:

Acting White House Chief of Staff Mick Mulvaney is asking to join a pending lawsuit aimed at clarifying whether the House of Representatives can require senior advisers to President Donald Trump to testify in the ongoing impeachment probe related to Ukraine.

Mulvaney’s move in a court filing late Friday night could breathe new life into the suit filed last month by former Deputy National Security Adviser Charles Kupperman.

Kupperman’s attorneys billed the lawsuit not as a challenge to Congress’ authority but as an effort to get a definitive ruling on whether the former Trump aide should comply with a subpoena he received to testify before the House Intelligence Committee or whether to abide by instructions from the president not to cooperate with the impeachment inquiry.