White House official who heard Trump's call with Ukraine leader testified that he was told to keep quiet
By Carol D. Leonnig, Tom Hamburger & Ellen Nakashima
White House Aide Confirms He Saw Signs of a Quid Pro Quo on Ukraine (Published 2019)
By Nicholas Fandos
A presidential loathing for Ukraine is at the heart of the impeachment inquiry
By Greg Jaffe & Josh Dawsey