A federal judge on Monday dismissed a lawsuit by Charles Kupperman, a former aide to President Trump who had sought a ruling on whether he needed to comply with a subpoena from the House impeachment inquiry.
Kupperman was Trump's deputy national security adviser and briefly served as acting national security adviser. He listened to the president's July 25 call with Ukrainian President Volodymyr Zelenskiy.
The White House had ordered him not to testify because "as a close presidential advisor, he was absolutely immune for compelled Congressional testimony," court documents say.
Kupperman, who has close ties to former national security adviser John Bolton, asked the court to rule on whether he should obey the White House or Congress.
He failed to appear to be interviewed in the impeachment inquiry in Washington on Oct. 28.
But the House later withdrew its subpoena, which made the matter moot, U.S. District Judge Richard Leon ruled.
"Kupperman no longer faces the 'irreconcilable commands' of two coordinated branches of government ... and he accordingly lacks any personal stake in the outcome of this dispute," Leon wrote.
In court filings, Kupperman had urged the judge to rule, arguing that the subpoena could be reissued and that he could be punished for failing to comply with that subpoena.
But Leon said the argument lacked merit because the House had "repeatedly and unequivocally" stated that it would not do so.
"To be perfectly clear yet again, the House Defendants will not reissue the subpoena to Kupperman, period," lawyers wrote in earlier court documents. "The subpoena will not reissue today, tomorrow, or ever."
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