US ambassador pressed Ukraine corruption fight before ouster

WASHINGTON (AP) — Months before the call that set off an impeachment inquiry, many in the diplomatic community were alarmed by the Trump administration’s abrupt removal of a career diplomat from her post as ambassador to Ukraine.
The ambassador’s ouster, and the campaign against her that preceded it, are now emerging as a key sequence of events behind a whistleblower’s complaint alleging that the president pressured a foreign country to investigate his political rival.
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