United States Court of Appeals For the Seventh Circuit ____________________ No. 22-2268 UNITED STATES OF AMERICA, Plaintiff-Appellee, v. GILBERT DEAN BICKNELL, Defendant-Appellant. ____________________

Appeal from the United States District Court for the Central District of Illinois. No. 4:20-cr-40046 — Sara Darrow, Chief Judge. ____________________

ARGUED MAY 31, 2023 — DECIDED JULY 19, 2023 ____________________

Before ROVNER, HAMILTON, and SCUDDER, Circuit Judges. SCUDDER, Circuit Judge. In Brady v. Maryland, the Supreme Court established that the government violates a criminal de- fendant’s right to due process when it suppresses evidence favorable to the defendant. 373 U.S. 83, 87 (1963). A decade later, in Giglio v. United States, the Court confirmed that Brady’s disclosure requirement applies to evidence that could be used to impeach a government witness. 405 U.S. 150, 154– 55 (1972). While Brady and Gigl