Whether the sentencing court meaningfully exercised its discretion in applying the guidelines

QUESTION PRESENTED FOR REVIEW For purposes of applying the abuse of discretion standard and presumption of reasonableness on appellate review of a within guidelines sentence, does Gall v. United States' mandate reviewing courts to first determine whether the sentencing court meaningfully exercised its discretion in applying the guidelines, instead of mechanistically going through the process? ' Gall v. United States, 552 U.S. 38 (2007). iv