MINNEAPOLIS (AP) - Attorneys for Minnesota businessman Tom Petters are asking the U.S. Supreme Court to review his 2009 conviction on charges that he orchestrated a $3.65 billion Ponzi scheme.

The appeal to the nation's highest court represents Petters' last chance to reverse a process that took him from a sprawling Lake Minnetonka home to a federal prison cell in Leavenworth, Kansas.

His attorneys argue that the trial judge prevented them from exposing the criminal background of one of his co-defendants, Larry Reynolds, who had been in the government's witness protection program for previous crimes. They also say Petters' 50-year sentence was disproportionate to those of his counterparts.

The 8th Circuit Court of Appeals last year rejected an appeal he lodged on similar grounds.

(Copyright 2012 by The Associated Press.  All Rights Reserved)

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