When the Supreme Court rules on an appeal from a state court, what restriction applies to the court's ruling?

Question... a State Supreme Court or the Federal Supreme Court?

The book doesn't say.

When the Supreme Court rules on an appeal from a state court, the following restriction applies to the court's ruling: it must abide by the Constitution of the United States.

To understand this, let's break it down:

1. Jurisdiction: The Supreme Court has the power to review decisions made by state courts through a process known as "appellate jurisdiction." This means that when a case is appealed to the Supreme Court from a state court, the Supreme Court has the authority to review and potentially overturn the decision.

2. Constitutional Limits: The Supreme Court is the highest court in the country and one of its primary responsibilities is to interpret the Constitution. When it reviews an appeal from a state court, it must ensure that the decision being made is consistent with the provisions of the United States Constitution.

3. Supremacy Clause: The Constitution establishes the principle of federal supremacy, which means that federal law, including the Constitution, takes precedence over state law. The Supreme Court's rulings on appeals from state courts help to ensure that state laws and decisions do not violate the Constitution.

In summary, when the Supreme Court rules on an appeal from a state court, it must ensure that its decision aligns with the Constitution of the United States, ensuring that state laws and decisions do not infringe upon individuals' constitutional rights.