You're reading: Chicago Tribune: Chicago feds maintain pursuit of Ukrainian oligarch tied to Manafort

President Donald Trump may be doing his darndest to undermine an investigation of his campaign’s alleged ties to the Russian government, but his Department of Justice isn’t backing off its pursuit of a Kremlin-backed Ukrainian oligarch.

Billionaire Dmitry Firtash — linked to former Trump campaign manager Paul Manafort — is fighting his extradition to Chicago on racketeering charges.

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