The United States and Iran have signed a Memorandum of Understanding, or (MOU), to end an Iran War that—when it began—Congressional Democrats widely denounced as a reprehensible and illegal “war of choice.” One might logically expect those same Democrats to welcome a diplomatic end to that war. Instead, many have taken aim at the MOU; some have even joined critics in the GOP who’ve suggested that it be subjected to Congressional review. The obvi…