What did the marshall court rulings that supported the “sanctity of contracts” and federal law over state law boost

A. a national economy and a strong federal government

Explanation:

John Marshall was the chief of justice of the US Supreme court from 1801 to 1835. Through his decisions, he expanded the role of the Federal government and the basis for economic growth.

In McCulloch v. Maryland the Court decided that states could not tax federal institutions and expanded the Federal government by allowing it to pass laws that were not into the expressed powers of the federal government.

In Gibbons v. Odgen, the Court held that the power to regulate interstate commerce was granted to Congress by the Commerce Clause of the Constitution.

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the doctrine of nullification recommended that states living inside the union have the one-sided, inalienable ideal to void any law made by the national government that could be esteemed illegal.

the united states was shaped based on a general agreement among its individual states. hence, it is inferred that under the hypothesis of invalidation, since the states are the establishment of the union, they have the ability to referee and disprove unlawful laws.