An ex-Trump aide wants a judge to decide whether he should testify to impeachment investigators or follow Trump's order not to cooperate

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• A former White House adviser is asking a federal court whether he should comply with a subpoena to testify before House impeachment investigators, or obey President Donald Trump's order not to cooperate.
• Former deputy national security adviser Charles Kupperman filed a lawsuit asking a judge to decide how he should proceed.
• The impeachment inquiry is rooted in a July 25 phone call Trump made to Ukrainian President Volodymyr Zelenskiy, asking him to pursue investigations of Democratic political rival Joe Biden's family.
• Kupperman said he "cannot satisfy the competing demands of both the legislative and executive branches."
• The chairmen of the House committees overseeing the impeachment inquiry rejected Kupperman's arguments, calling the suit "an obvious and desperate tactic by the President to delay and obstruct the lawful constitutional functions of Congress and conceal evidence about his conduct from the impeachment inquiry."
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WASHINGTON (AP) — An ex-White House adviser who's supposed to testify before House impeachment investigators on Monday has asked a federal court whether he should comply with a subpoena or follow President Donald Trump's directive against cooperating in what the president dubs a "scam."

After getting a subpoena Friday, former deputy national security adviser Charles Kupperman quickly filed a lawsuit in US district court in Washington. He asked a judge to decide whether he should accede to House demands for his testimony or to assert "immunity from congressional process" as directed by Trump.See the rest of the story at Business Insider

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