Supreme Court rulings such as Fletcher vs. Peck and McCulloch vs. Maryland supported

The Supreme Court rulings in Fletcher vs. Peck and McCulloch vs. Maryland supported the strengthening of federal power over state power.

1. Fletcher vs. Peck (1810): This was the first case in which the Supreme Court ruled a state law unconstitutional. The case involved a dispute over land in Georgia. The Supreme Court ruled that the Georgia law was in conflict with federal law, thus asserting the supremacy of federal law over state law.

2. McCulloch vs. Maryland (1819): This case involved a dispute over the ability of the state of Maryland to tax a federal bank. The Supreme Court ruled that the state of Maryland did not have the power to tax the bank, thus asserting the supremacy of federal law over state law.

In both cases, the Supreme Court rulings supported the idea that federal law is supreme over state law, thus strengthening federal power.