More than a little embarassing:
When George H. W. Bush in the 1970s and 1980s threatened to "unleash Chang" on his tennis opponents, he was referring to China's onetime strongman and thereafter Taiwan's dictator Chiang Kaishek, leader of the Nationalist Party, the man who had largely reunified China in the 1920s with his army's "Northern Expedition," lost the Chinese Civil War to Mao Zedong's Chinese Communist Party, and then taken refuge with his Guomindang party cadres on Taiwan. After the start of the Korean War, the American 7th Fleet protected Chiang (and Taiwan) from Mao's People's Liberation Army. Republican wingnuts, however, pretended that the 7th Fleet actually protected Mao's Communists (who had, after all, won the Chinese Civil War) from Chiang's Nationalists (who had, after all, lost it) by keeping Chiang Kaishek leashed. They periodically called for the U.S. to "unleash Chiang Kaishek"--so that Chiang, you see, could invade and conquer the Chinese mainland.
When George H. W. Bush, playing tennis (and losing) in the 1970s and 1980s, would threaten to "unleash Chiang," he was mocking the right-wing nuts of his generation. But George H. W. Bush's sons--even the smart one, Jeb--never got the joke. They, you see, didn't know enough about world history or even the history of the Republican Party to know who Chiang Kaishek was, or what "Unleash Chiang!" meant. Hence Jeb Bush's explanation that twentieth-century Chinese nationalist, socialist, general, and dictator Chiang Kaishek was a "mystical warrior... who believes in conservative principles, believes in entrepreneurial capitalism, believes in moral values that underpin a free society."