MARY CLARE JALONICK and ERIC TUCKER
WASHINGTON (AP) — A former national security official defied a House subpoena Monday, escalating a standoff between Congress and the White House over who will testify in the impeachment inquiry against President Donald Trump.
Charles Kupperman, who was a deputy to former national security adviser John Bolton, failed to show up for a scheduled closed-door deposition after filing a lawsuit asking a federal court in Washington to rule on whether he was legally required to appear. In a statement, Kupperman said he was awaiting "judicial clarity."
House Intelligence Chairman Adam Schiff said Kupperman's suit has "no basis in law" and speculated that the White House didn't want him to testify because his testimony could be incriminating