In 1803, New York passed a law giving 2 man (Livingston and Fulton) the right to be the only operating a steamboats in New York water. A little bit later they then passed it to a man named Ogden. Then a man named Gibbons was using steam boat in New York water (he had a licensed) , but Odgen filed a law case to him, and the court ordered Gibbons to stop operating his boat.
Gibbons took his case to the court and explained to them what needs to happened. He said that the New York's law violated the Commerce Clause. The Commerce Clause explains that congress should have the power to regulate commerce among several states. Commerce means business activity and Gibbons was doing business.
That is my point judge.
The Supreme Court agreed with Gibbons explanation. They said it is impossible for Congress to regulate business activity among states. Also that a state can only regulate business in its own borders not other states.