Article I: Protecting Democracy, Preserving Liberty, and Preventing Abuse of Power by State Governments – The Critical Importance of Section 10.

Here is a more detailed breakdown of Section 10 of Article I of the US Constitution, which outlines the limitations on the powers of the states:

Section 10: Limitations on the Powers of States

Clause 1:

The Treaties States cannot enter into treaties with foreign powers. This clause ensures that the federal government has exclusive control over foreign affairs.

Clause 2:

The Alliances States cannot form alliances with foreign powers. This clause reinforces the federal government’s authority over foreign affairs and helps to maintain a unified approach to foreign policy.

Clause 3:

The Letters of Marque and Reprisal States cannot grant letters of marque and reprisal. A letter of marque is a government license authorizing a person to attack and seize the property of an enemy. This clause ensures that the federal government has exclusive authority to conduct war and diplomacy.

Clause 4:

The Coinage of Money States cannot coin money. This clause ensures that the federal government has exclusive authority to regulate the currency and prevents individual states from creating their own currencies.

Clause 5:

The Bills of Credit States cannot issue bills of credit, which are paper currency that is not backed by specie (gold or silver). This clause ensures that the federal government has exclusive authority to regulate the currency and prevents states from creating their own currencies.

Clause 6:

The Legal Tender States cannot make anything but gold and silver coin a legal tender in payment of debts. This clause reinforces the federal government’s exclusive authority over currency and prevents states from requiring payment in other forms of currency.

Clause 7:

The Ex Post Facto Laws and Bills of Attainder States cannot pass ex post facto laws or bills of attainder. This clause ensures that individuals are afforded due process of law and protects against arbitrary punishment by state governments.

Clause 8:

The Impairment of Contracts States cannot pass laws impairing the obligation of contracts. This clause ensures that contracts are binding and enforceable, and protects individuals and businesses from arbitrary interference by state governments.

Clause 9:

The Titles of Nobility States cannot grant any title of nobility. This clause reinforces the federal government’s prohibition on creating an aristocracy or granting special privileges based on birth or social status.

So, why limit the States Power?

The Founding Fathers included Section 10 of Article I in the Constitution to limit the power of the states and strengthen the power of the federal government. The states had previously had significant powers under the Articles of Confederation, but the Founders recognized that a stronger central government was necessary to effectively govern the new nation.

Section 10 specifically prohibits the states from engaging in certain activities, such as making treaties, coining their own money, or passing laws impairing the obligation of contracts. These prohibitions were designed to prevent the states from interfering with the federal government’s ability to conduct foreign affairs, regulate commerce, and maintain a stable economic system.

The Framers also recognized that allowing the states to engage in these activities could create a patchwork of conflicting laws and policies that would undermine the unity of the nation. By limiting the power of the states, the Constitution helped establish a more unified and stable federal system that could effectively govern the nation and protect individual rights and freedoms.


Overall, Section 10 places significant limitations on the powers of the states in order to ensure a unified approach to foreign policy and currency regulation, and to protect individual liberties and prevent abuse of power by state governments. These limitations have played an important role in shaping the development of American democracy and the relationship between the federal government and the states.

Up next is Article II and the powers of the President of the United States.