Mueller is free to bring charges in NY if he wants. Mueller let go of the Cohen case because it was out of his subject matter jurisdiction. If the Cohen case is out of his subject matter jurisdiction, then why isn't a 2005 tax case out of his subject matter jurisdiction?
1. There is no 2005 tax case here. The statute of limitations for such a charge has long since expired.
2. Manafort has made a career out of peddling influence in Washington to foreign governments. I think you'd have a hard time finding a Federal investigation involving Manafort that did NOT come under Mueller's jurisdiction.