Constitutional Dynamics
1. Introduction, Understanding the Structure of American Federalism
Federalism is one of the most important ideas built into the American constitutional system. It divides
governing authority between the national government and the states, allowing both levels to operate at
the same time over the same people. This structure helps a large and diverse country stay unified while
still giving regions the freedom to reflect their own values and preferences. As Daniel Elazar famously
described it, federalism is a system of “self rule plus shared rule.”
There are several reasons why federalism remains essential. It allows different areas of the country to
adopt policies that fit their own cultures, which reduces pressure for secession. It encourages
experimentation, since states can try new ideas before the national government adopts them. And it
prevents power from concentrating in one place, which protects against tyranny by giving citizens
multiple points of political access. These ideas shaped the early constitutional system and were tested in
major Supreme Court cases during the nineteenth century.
2. Defining Congressional Power, Gibbons v. Ogden, 1824
Gibbons v. Ogden was the first major case to interpret the Commerce Clause in Article 1, Section 8. It
addressed how far Congress’s power to regulate commerce “among the several states” actually extends.
The case began when New York granted Aaron Ogden a monopoly to operate steamboats between New
York and New Jersey. Thomas Gibbons, who held a federal license under the Coasting Act of 1793,
began running a competing service. When New York courts ordered Gibbons to stop, he appealed to the
Supreme Court, arguing that the state monopoly conflicted with federal law and violated the Supremacy
Clause.
How the Marshall Court Interpreted Federal Power
Definition of Commerce
Marshall defined commerce as “every species of commercial intercourse,” which included navigation.
This broadened federal authority beyond the exchange of goods to include the movement of people and
vessels.
The Complete Nature of Federal Power
Marshall explained that the power to regulate interstate commerce is complete in itself and limited only
by the Constitution. This confirmed that federal regulation is supreme whenever interstate activity is
involved.
Internal State Matters
Marshall also noted that issues that are purely internal to a state, such as health and inspection laws,
remain under state control. This preserved a meaningful sphere of state authority.
Why Gibbons Matters
1. Introduction, Understanding the Structure of American Federalism
Federalism is one of the most important ideas built into the American constitutional system. It divides
governing authority between the national government and the states, allowing both levels to operate at
the same time over the same people. This structure helps a large and diverse country stay unified while
still giving regions the freedom to reflect their own values and preferences. As Daniel Elazar famously
described it, federalism is a system of “self rule plus shared rule.”
There are several reasons why federalism remains essential. It allows different areas of the country to
adopt policies that fit their own cultures, which reduces pressure for secession. It encourages
experimentation, since states can try new ideas before the national government adopts them. And it
prevents power from concentrating in one place, which protects against tyranny by giving citizens
multiple points of political access. These ideas shaped the early constitutional system and were tested in
major Supreme Court cases during the nineteenth century.
2. Defining Congressional Power, Gibbons v. Ogden, 1824
Gibbons v. Ogden was the first major case to interpret the Commerce Clause in Article 1, Section 8. It
addressed how far Congress’s power to regulate commerce “among the several states” actually extends.
The case began when New York granted Aaron Ogden a monopoly to operate steamboats between New
York and New Jersey. Thomas Gibbons, who held a federal license under the Coasting Act of 1793,
began running a competing service. When New York courts ordered Gibbons to stop, he appealed to the
Supreme Court, arguing that the state monopoly conflicted with federal law and violated the Supremacy
Clause.
How the Marshall Court Interpreted Federal Power
Definition of Commerce
Marshall defined commerce as “every species of commercial intercourse,” which included navigation.
This broadened federal authority beyond the exchange of goods to include the movement of people and
vessels.
The Complete Nature of Federal Power
Marshall explained that the power to regulate interstate commerce is complete in itself and limited only
by the Constitution. This confirmed that federal regulation is supreme whenever interstate activity is
involved.
Internal State Matters
Marshall also noted that issues that are purely internal to a state, such as health and inspection laws,
remain under state control. This preserved a meaningful sphere of state authority.
Why Gibbons Matters
