Washington (CNN) A former senior campaign and transition aide to President Donald Trump recently inked a deal to help a Russian oligarch's conglomerate shed sanctions the Trump administration slapped on them last month. Lanza's involvement with EN+ Group began within the last month or so, according to a source familiar with the transaction. Lanza's work with the Russian-linked firm comes as Mueller continues to investigate whether there was any collusion between Trump campaign aides and Russians during the 2016 presidential campaign. While at the helm of the Trump campaign, Manafort used an intermediary to offer Deripaska private briefings about the election, according to The Washington Post. The New York Republican previously worked on Trump's campaign and assisted with administration hires during the presidential transition.

Source: CNN May 12, 2018 22:07 UTC