846, 851 (7th Cir.2010); Rawoof v. Texor Petroleum Co., Inc., 521 F.3d 750, 756 (7th Cir.2008). Even if constitutional standing is established, however, there are also prudential limitations of the court’s exercise of jurisdiction. FMC Corp., 852 F.2d at 987. A complaint may meet the standards for constitutional standing, yet fail to overcome the prudential standing hurdles. FMC Corp., 852 F.2d at 988. Although the court on its own may raise unpreserved questions of either constitutional or prudential standing, the court is not obligated to do so with respect to prudential standing questions. Rawoof 521 F.3d at 757. We have held that matters of prudential standing can be waived if not preserved. RK Co., 622 F.3d at 851, but see Lewis v. Alexander, 685 F.3d 325, 340 n. 14 (3d Cir.2012)(<HOLDING>). Here, the standing objection was properly
recognizing split recognizing split within the circuit on whether the rule is mandatory or discretionary but not resolving the conflict recognizing circuit split holding that district court may consider  3553a2a and noting circuit split on the issue recognizing a split in the circuit as to whether objections to prudential standing can be waived and listing circuit cases