TRA VINH, VIETNAM -- In the spartan banquet room of the Coolong Hotel, the Communist Party apparatchiks all agree on one thing: Democratic Senator John Kerry is the best candidate for U.S. president. Mr. Kerry, who served in Vietnam but later became an opponent of the war, is seen in the rural Mekong Delta province of Tra Vinh as a brave warrior, a man to be respected "soldier to soldier." "That George Bush is so arrogant. Mr. Kerry is better for Vietnam," says Tran Hoan Kim, the Communist Party's provincial chairman and a former Viet Cong guerrilla fighter during what...