When reviewing a suppression ruling on appeal, should the appellate court review factual findings for clear error and the ultimate legal determination de novo, or should it also view the evidence in the light most favorable to the district court's ruling?

QUESTION PRESENTED When reviewing a suppression ruling on appeal, should the appellate court review factual findings for clear error and the ultimate legal determination de novo, as six circuits do, or should it also view the evidence in the light most favorable to the district court’s ruling, as the Tenth Circuit did here and as four other Circuits do? @