United States v. Solis-Bermudez, 501 F.3d 882 (8th Cir. Sept. 13, 2007) (district court did not abuse discretion in varying upward from sentencing guidelines and imposing 60 month non-guidelines sentence for illegal re-entry following conviction of an aggravated felony; "In the wake of the Supreme Court's decision in United States v. Booker, 543 U.S. 220, 125 S.Ct. 738, 160 L.Ed.2d 621 (2005), we review sentences to determine whether the district court abused its discretion by imposing an unreasonable sentence on the defendant. United States v. Haack, 403 F.3d 997, 1003 (8th Cir.), cert. denied, 546 U.S. 913, 126 S.Ct. 276, 163 L.Ed.2d 246 (2005). A district court abuses its discretion if (1) [it] fails to consider a relevant factor that should have received significant weight; (2)[it] gives significant weight to an improper or irrelevant factor; or (3)[it] considers only the appropriate factors but in weighing those factors commits a clear error of judgment. Id. at 1004 (internal marks omitted)").