In this excerpt, justice Harlan is warning against-

What was the result of the supreme court ruling in gibbons v. ogden the court supported the establishment of a national bank and prohibited states from taxing the bank. the court decreased the power of the federal government by restricting steamboat travel to within a state. the court decreased the power of the federal government by allowing states to tax the national bank. the court defined interstate commerce and declared federal law supreme over state law.