The Anti-Federalist Papers
The best known anti-federalist was Thomas Jefferson. These opponents of the new Constitution had many objections. Mainly they felt that the Constitution gave too many rights to the National government. Many of them were appeased with the Bill of Rights.
When those who sought ratification of the Constitution co-opted the name "Federalist," they forced onto their opponents the label "Anti-federalist." This made the Anti-federalists appear purely negative when they in fact stood for affirmative visions of government that were simply different from the framework advocated by the Constitution's defenders. Perhaps most misleading of all, the designation "Anti-federalist" applied to a group that generally supported a less centralized "federal" government in which the states would retain more power, while the term "Federalist" fell to those who advocated the more centralized national government that they believed the Constitution would guarantee. The Anti-federalists, like many of history's losers, have been misunderstood and underappreciated.