.R. 962 (Cite as: 435 F.3d 1100) Indeed, "even resort to the Commerce Clause cannot] is fy the standards of due process." Seo'y of Agric. I Cent. Roig Refining Co., 338 U.S. 604, 616, 70 S.Ct. 403, 94 L.Ed. 381 (1950). In Blackmer' United States, 284 U.S. 421, 52 S.Ct. 252, 76 L.Ed. 375 (1932), the Supreme Co