During late-September, President Kennedy dispatched the McNamara Taylor mission to investigate the political and military situation in South Vietnam. This included investigating an ARVN coup. Minh expressed an interest in meeting McNamara and Taylor, so a game of doubles tennis was organized. McNamara watched on as Taylor played with Minh, giving "broad hints of our interest in other subjects which we gave him during breaks in the game". Minh revealed nothing of his thoughts about a possible coup, leaving his guests bewildered. Minh later messaged Taylor with a complaint about a perceived lack of support from Washington for a coup. Diệm became very unpopular during the Buddhist crisis of 1963; the U.S. informed the Vietnamese generals (through the CIA) that it would not object if Diệm were to be overthrown. Minh was the second highest ranking general at the time, and he led the coup to overthrow Diệm on 1 November 1963.