In OTL, George Bush's plane was shot down during a mission over the Japanese island of Chichijima on September 2, 1944, and he was rescued by a US submarine. He was one of nine US airmen shot down on that raid, and was the only one of them to avoid capture. His eight comrades were all killed in Japanese captivity on the orders of the island's commander, General Yoshio Tachibana (who was later executed as a war criminal). Four of the bodies were butchered by medical orderlies, and their livers and thigh meat were cooked and served as meals to the senior commanders of the Japanese garrison.
Suppose Bush had either been killed when shot down in his airplane, or had survived and met a fate similar to the other airmen? What would have been the future of American politics, and what would have been the reaction in the US when it's established that the son of a prominent family got served up as the main course for Japanese officers?