Brutus' argument refers to the concerns raised in the Anti-Federalist paper, Brutus 1, about the dangers of a strong central government as proposed in the U.S. Constitution. Brutus argued that such a government would inevitably lead to tyranny and the erosion of individual liberties, emphasizing the importance of a more decentralized form of governance that would protect states' rights and the people's freedoms. This perspective directly contrasts with the views presented in Federalist No. 10, which advocates for a strong republic to mitigate the risks posed by factions.