Orabi v. Attorney General of the U.S., 738 F.3d 535, 539 (3d Cir. Jan. 2, 2014) (Because the BIA did not reach its decision based on this ground, we may not affirm the judgment on this ground.); see Sec. & Exch. Comm'n v. Chenery Corp., 332 U.S. 194, 196, 67 S.Ct. 1575, 91 L.Ed. 1995 (1947) ([A] reviewing court, in dealing with a determination or judgment which an administrative agency alone is authorized to make, must judge the propriety of such action solely by the grounds invoked by the agency. If those grounds are inadequate or improper, the court is powerless to affirm the administrative action by substituting what it considers to be a more adequate or proper basis.); Li v. Att'y Gen., 400 F.3d 157, 163 (3d Cir.2005) (noting that a court cannot affirm an agency decision on a ground upon which the agency did not rely).