Answer:
The Anti-Federalists were opposed mainly to the passing of the Constitution of the United States, because they considered that it granted too many powers to the role of president, fearing him to become a tyrant or dictator, resembling an absolutist monarch. Therefore, as the approval of the Constitution was an imminent event, their objective became to include a Bill of Rights within it, to prevent citizen liberties from being corrupted by an authoritarian power. This is how the first 10 amendments to the Constitution were created.