Whether the mens rea requirement in 21 U.S.C. § 841(a) applies to drug type and quantity

QUESTIONS PRESENTED 1. Whether, in light of Flores-Figueroa v. United States, 556 U.S. 646 (2009), Rehaif v. United States, 139 S. Ct. 2191 (2019), and Alleyne v. United States, 133 S. Ct. 2151 (2013), and the Due Process Clause, the “knowingly or intentionally” mens rea contained in 21 U.S.C. § 841(a) applies to the offense elements of drug type and drug quantity found in 21 U.S.C. § 841(b). 2. Whether the Fourth Amendment standards for traffic stops articulated in Rodriguez v. United States, 135 8. Ct. 1609 (2015), apply to stops. i