The judgment is affirmed. 1 . The Honorable Jean C. Hamilton, United States District Judge for the Eastern District of Missouri. 2 . Crow analyzed the damp substance removed from the microwave and concluded that it was cocaine base (also known as crack cocaine). The cocaine in the microwave amounted to 45.03 grams of the 52.06 gram total. During the time it was held as evidence, the damp cocaine dried into a single large chunk. 3 . Our conclusion is consistent with our prior observation that "Section 841 and its mandatory minimum sentencing provisions have consistently withstood constitutional scrutiny.” United States v. Regenos, 54 Fed.Appx. 245, 245 (8th Cir.2002) (unpublished per cu-riam) (collecting cases); see also United States v. Jones, 965 F.2d 1507, 1517-18 (8th Cir.1992) (<HOLDING>); United States v. Johnson, 944 F.2d 396,
holding life in prison without the possibility of parole was not cruel and unusual punishment for juvenile convicted of murder holding that a life sentence pursuant to  841 blaiii was not a cruel and unusual punishment holding that what constitutes cruel and unusual punishment is a question of law holding sentence of life imprisonment resulting from a wrongful killing caused by the use of an automobile is not cruel and unusual punishment holding cruel and unusual punishment complaint not preserved