De La Cruz v. Maurer, 483 F.3d 1013 (10th Cir. April 3, 2007) (rejecting claim that due process and equal protection are offended by stop-time rule for cancellation of removal, under 8 U.S.C. 1229b(a), (d), on grounds there is no rational basis exists for the legislature to provide a stop-time rule for 8 U.S.C. 1229b(a)(2)'s "continuous presence" requirement when no such rule exists for 8 U.S.C. 1229b(a)(1)'s five-year requirement; noncitizen lacks protected liberty interest in grant of cancellation of removal), citing United States v. Aguirre-Tello, 353 F.3d 1199, 1204-05 (10th Cir. 2004) (examining the case law in several circuits, and concluding former suspension of deportation, as a purely discretionary form of relief, did not give rise to a liberty or property interest protected by the due process clause), vacated, United States v. Aguirre-Tello, 353 F.3d 1199, 1209 (10th Cir. 2004) (en banc).