Donald Trump's demagogic rhetoric has succeeded in persuading his supporters because of his skillful use of two primary syllogisms--an electoral syllogism and a revolutionary syllogism. The syllogistic character of his rhetoric is usually not clear because he leaves some steps in his syllogistic reasoning unstated, so that they have to be supplied by the listeners. This is what Aristotle described in his Rhetoric as persuasion through enthymemes.
Major premise: Because of stupid politicians, America no longer wins; and America will not win again until a successful businessman who knows how to win is elected president.
Minor premise: Donald Trump is unique in his business success and his prudence in knowing how to win, because he is a self-made multi-billionaire.
Conclusion: Therefore, Americans need to elect Trump president.
Minor premise: The cultural history of the American colonies shows that the British King intends to exercise tyranny over the colonies.
Conclusion: The 56 individuals signing the Declaration can rightly exercise their prudential judgment, acting as representatives of the American people, to affirm the conclusion that the American colonies have a right to revolt in separating from British rule.