Steven Evans appeals the district court’s 1 order denying his 28 U.S.C. § 2241 petition challenging his civil commitment under 18 U.S.C. § 4246. Following careful de novo review, see United States v. Lurie, 207 F.3d 1075, 1076 (8th Cir. 2000), we conclude that Evans’s challenges to the lawfulness of his confinement, and particularly his jurisdictional arguments, are meritless. Accordingly, we affirm, and we grant counsel’s motion to withdraw.