https://www.motherjones.com/impeachment/2019/11/top-nsc-official-says-mick-mulvaney-was-key-player-in-trump-ukraine-quid-pro-quo/
"Hill testified that Rudy Giuliani, who is Trump’s lawyer, was helping Russian disinformation efforts by spreading the debunked (but Trump-favored) conspiracy theory that Ukraine intervened in the 2016 US election. She also told lawmakers that Giuliani and his now-indicted business associates, Lev Parnas and Igor Fruman, mounted a campaign to oust US ambassador to Ukraine Marie Yovanovitch to advance their own business interests—and that she suspected Giuliani might have been involved in criminal activity."