In "Gibbons", the Court struck down New York State's attempt to grant a steamboat monopoly to Robert Fulton, which he had then ultimately franchised to Ogden, who claimed river traffic was not "commerce" under the Commerce Clause and that Congress could not interfere with New York State's grant of an exclusive monopoly within its own borders. Ogden's assertion was untenable: he contended that New York could control river traffic within New York all the way to the border with New Jersey and that New Jersey could control river traffic within New Jersey all the way to the border with New York, leaving Congress with the power to control the traffic as it crossed the state line.