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Illinois Governor Rod Blagojevich's Chief of Staff John Harris leaves federal court after his arraignment in Chicago December 9, 2008. Blagojevich still has the power to name a U.S. senator to fill the seat vacated by fellow Democrat President-elect Barack Obama, the federal prosecutor in the case said on Tuesday. U.S. Attorney Patrick Fitzgerald said the governor, who was arrested on Tuesday on corruption charges including trying to "sell" Obama's seat in the U.S. senate, has sole power to name a successor for Obama.