Should a certificate of appealability have issued after the district court denied as untimely a 28-U.S.C-2255-motion

QUESTION PRESENTED FOR REVIEW Should a certificate of appealability have issued after the district court denied as untimely a 28 U.S.C. § 2255 motion to vacate that sought to challenge the constitutionality of 18 U.S.C. § 924(c)(3)(B) based on this Court’s decision in Johnson v. United States, 135 S. Ct. 2551 (2015), which held the residual clause of 18 U.S.C. § 92.4(e)(2)(B)Gi) to be unconstitutional? ii