Court of Appeals for the Seventh Circuit December 22, 2003, 03-2187 (Benjamin Barry Kramer v. Keith E. Olson, Warden, United States Penitentiary, Terre Haute, Indiana)

PER CURIAM.

Federal prisoner Benjamin Kramer petitioned for a writ of habeas corpus under 28 U.S.C. § 2241, challenging his conviction under

Richardson v. United States,

526 U.S. 813, 119 S.Ct. 1707, 143 L.Ed.2d 985 (1999). The district court concluded that Kramer could not proceed under § 2241 because the principal means of attacking a federal conviction, a motion to vacate un

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der 28 U.S.C.