Donald Trump addressed the United Nations General Assembly on Tuesday and spent most of the speech praising his own administration. He ran through domestic achievements and foreign policy moves in a tone far removed from standard diplomatic caution. Again he promised that he can resolve the military conflict between Russia and Ukraine. That pledge has been repeated for months without a settlement appearing. Delegates heard little that resembled a concrete plan or timetable for the negotiations he keeps describing. The address doubled as a performance for audiences at home as much as for the hall in New York. For now the war continues, and the distance between promise and outcome keeps growing.