personally interfered to prevent U.S. visas requests by Ukraine prosecutors who wanted to present evidence of Obama Admin corruption to U.S. DOJ officials. Additionally, Ambr. Yovanavitch lied during her testimony before Schiff's impeachment theater committee at least twice.
https://www.foxnews.com/media/rudy-giuliani-says-he-forced-out-ukraine-ambassador-yovanavitch-she-was-corrupt