Matter of Chavez-Alvarez, 26 I. & N. Dec. 274 (BIA Mar. 14, 2014) (adjustment of status constitutes an admission for purposes of determining removability under INA 237(a)(2)(A)(iii), 8 U.S.C. 1227(a)(2)(A)(iii), as an alien convicted of an aggravated felony at any time after admission).