Lobbyist linked to Paul Manafort aide cooperating with special counsel Robert Mueller after guilty plea

An associate of a Russian co-defendant of ex-Trump campaign chief Paul Manafort pleaded guilty Friday to failing to register as an agent for foreign interests, and has agreed to cooperate with prosecutors, including special counsel Robert Mueller.

The case against W. Samuel Patten, 47, of Washington, D.C., relates to consulting and lobbying work that he and an unidentified Russian national performed for a Ukraine political party and its members, who included a "prominent Ukraine oligarch." Manafort had advocated for the creation of that party, Opposition Bloc, after Manafort's client, ex-Ukraine President Viktor Yanukovych, was removed from office and fled to Russia.

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