What did several supreme court decisions do in the early 1800s?

Many of the Supreme Court decisions in the 1800s further strengthened the power of the Federal Government. The first major Supreme Court case, Marbury v Madison, helped to empower the Supreme Court. Marshall gave the power of judicial review. This is the ability to declare laws unconstitutional. McCullough vs Maryland, Gibbons vs Ogden, and Worchester vs Georgia all helped to enforce the powers of the federal government primarily calling upon the "necessary and proper" clause to execute the various laws that they felt needed to be enforced.