How did gibbons v. ogden expand the idea of federal supremacy? it said that federal judicial review is required in all state legal cases. it said the constitution is open to interpretation in state matters. it said that federal trade is more important than state trade. it said that congress has power to regulate trade between states.

The answer is: It said that Congress has power to regulate trade between states.

Gibbons v. Ogden was a major decision by the Supreme Court of the United States of America where it upheld the right of Congress to regulate commerce between States.

Such decision was upheld because the "Commerce Clause" in the constitution gives Congress such power.

Gibbons v. Ogden stated that Congress has power to regulate trade between states.

b.   jim crow laws were enacted in northern states.

the answer is c. to explore the louisiana purchase