United States Court of Appeals For the Seventh Circuit ____________________ No. 19-2985 UNITED STATES OF AMERICA, Plaintiff-Appellee, v. NICHOLAS O. NELSON, Defendant-Appellant. ____________________

Appeal from the United States District Court for the Eastern District of Wisconsin. No. 18-CR-155 — William C. Griesbach, Judge. ____________________

ARGUED APRIL 14, 2020 — DECIDED MAY 11, 2020 ____________________

Before WOOD, Chief Judge, and EASTERBROOK and KANNE, Circuit Judges. WOOD, Chief Judge. In the course of a police check of a sus- picious vehicle, Nicholas Nelson was caught with a handgun. Because he previously had been convicted of a felony, it was a crime for him to possess such a weapon. He eventually was charged with violating 18 U.S.C. § 922(g), and he was con- victed after a jury trial. He raises two arguments on appeal, both directed to his conviction: first, he complains about some 2