The Obama administration Monday called the fall of the capital of Iraq’s Anbar province to the Islamic State a temporary setback that Iraqi forces would reverse with U.S. support. Experts dismissed that assessment as ludicrous. “Delusional, really, is the better word,” Ali Khedery, a former U.S. official who served as an adviser to five U.S. ambassadors to Iraq and three heads of U.S. Central Command, said of the administration’s statement. “It’s unbelievable, frankly. I now know what it’s like to have lived through Vietnam, I guess.” Experts called the loss a stunning blow to the Iraqi government and U.S. strategy....