Lt. Col. Alexander Vindman arrives to testify before the House Intelligence Committee in November 2019 during the impeachment inquiry against former President Donald Trump.
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National Security Council Europe expert Lt. Col. Alexander Vindman (left) appears before the House Intelligence Committee during an impeachment hearing in November.
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Army Lt. Col. Alexander Vindman arrives on Capitol Hill in October as part of the impeachment inquiry. Controversy has grown over an abnormal stall in Vindman's promotion to the rank of full colonel.
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Army Lt. Col. Alexander Vindman, a military officer at the National Security Council who testified during the impeachment hearings on Capitol Hill, is seen at the White House complex in January.
Sen. Tammy Duckworth, D-Ill., at a Senate Armed Services Committee hearing in May. She wants an Army officer who testified at Trump impeachment hearings to get his promotion.
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