From Congressforkids.net

The Supreme Court heads the judicial branch of the United States government. It is the only court established by the Constitution. Decisions made by the Supreme Court are usually of national importance. “Equal Justice under Law” is the motto of the Supreme Court. The wording of the Constitution is complex, so it must be studied and examined carefully. When questions concerning particular laws arise in lower courts, the justices who make up the Supreme Court are responsible for explaining and interpreting the Constitution.

All of the other courts in the United States must follow the ruling or the decision made by the justices of the Supreme Court. The Constitution also gives the Supreme Court the power to judge whether federal, state, and local governments are acting within the law. The Supreme Court can also decide if a president’s action is unconstitutional.

The decisions of the Supreme Court are absolute and final; in contrast, the decisions and judgments reached in lower courts may be appealed or questioned. Thousands of requests for rulings reach the Supreme Court each year. Fewer than one hundred fifty are actually considered and ruled upon.