United States v. Sahagun-Gallegos, ___ F.3d ___, ___, 2015 WL 1591446 (9th Cir. Apr. 10, 2015) (When conducting the modified categorical approach, we may not examine a transcript to try to discern what ... a plea proceeding revealed[ ] about the defendant's underlying conduct. Descamps, 133 S.Ct. at 2288. Rather, we are limited to assessing whether the defendant necessarily admitted the elements of the particular statutory alternative that is a categorical match to the generic federal offense. See id. at 2284 (quoting Shepard, 544 U.S. at 26, 125 S.Ct. 1254).).