PER CURIAM.
Bryant Roach, who pleaded guilty to failing to register as a sex offender under the Sex Offender Registration and Notification Act, see 18 U.S.C. § 2250(a), appeals from the district court’s order rejecting his argument that the Act unconstitutionally delegated to the Attorney General the decision of whether the Act applies retroactively. Mr. Roach’s argument, however, is foreclosed by our recent decision in United States v. Kuehl, 706 F.3d 917, 920 (8th Cir.2018). See 8th Cir. R. 47B.
Affirmed.
. The Honorable Laurie Smith Camp, Chief United States District Judge for the District of Nebraska.