DUBAI, United Arab Emirates—Iran’s outgoing president on Sunday acknowledged the Iranian regime at times “did not tell part of the truth” to its people during his eight-year tenure, as he prepares to leave office with his signature nuclear deal with world powers in tatters and tensions high with the West. President Hassan Rouhani’s comments, aired on state television, come as officials in his government have appeared rudderless in recent months amid a series of crises ranging from the coronavirus pandemic to parching droughts fueling public protests. After appearing just days earlier to be lectured by Supreme Leader Ayatollah Ali Khamenei about their failures in the nuclear negotiations, Rouhani’s remarks appeared aimed at acknowledging the problems his government faced in its waning hours. President-elect Ebrahim Raisi, a protégé of Khamenei, will be inaugurated Thursday. “What we told people was not contrary to reality, but we did not tell part of the …