Read the passage from Sugar Changed the World . The leaders of the American Revolution kept close watch as the former slaves fought for their freedom in Haiti. But that fight split the Founding Fathers—who had their own conflicts about how to deal with slavery in the new United States. When John Adams was president, he sent guns and supplies to Toussaint to help in the struggle against the French. Thomas Jefferson, though, was terrified by the success of the Haitian revolution. When Thomas Jefferson succeeded Adams, he saw Haiti only as a threat. He expected ex-slaves from the island to spread into America, preaching freedom and rebellion to the slaves. "Unless something is done," he warned, "and soon done, we shall be the murderers of our own children . . . ; the revolutionary storm now sweeping the globe will be upon us." So he refused to recognize Haiti—America's only sister republic. In fact, it was not until 1862 that Abraham Lincoln, about to issue the Emancipation Proclamation, finally established relations with Haiti. Americans like Jefferson were proud of having fought for their freedom. But as long as they could still see Africans as property, they could not treat Haitians as equally brave and courageous human beings. For if Haitians could claim their freedom and be recognized by America, why couldn't slaves within the United States do the same thing? In this passage, how do the authors use historical details to support the claim that US political leaders’ positions on slavery impacted the relations between the United States and Haiti? Choose three correct answers.