Retired Lt. Col. Alexander Vindman, a key witness in former President Donald Trump’s first impeachment case, filed suit earlier this year in federal court.
The retired Army lieutenant colonel is accusing the former president's allies of participating in an “intentional, concerted campaign of unlawful intimidation and harassment” over his decision to testify during the impeachment case.
More than 1,100 Army lieutenant colonels have seen their promotions held up by a battle between Sen. Tammy Duckworth, D-Ill., and the Trump administration.