Paul Manafort, the one-time advisor to disgraced former Ukrainian President Viktor Yanukovych, was hailed as a great asset when he was taken on a few months ago as Republican presidential candidate Donald Trump’s campaign chairman.But with the latest revelations about shady deals Manafort seems to have been involved in while in Ukraine, he’s looking more like a serious liability.

According to various news reports, Manafort allegedly received an undeclared $12.7 million from Yanukovych’s Party of Regions and helped a Yanukovych-linked non-profit organization to secretly route $2.2 million to U.S. lobbyists.