The Supreme Court of The United States of America is a federal court that hears cases by the government of the nation and any type of case coming from the state courts that involves the constitution and federal law.
They choose the cases from the appellate courts that they will consider and Certiorari is usually being granted when the court agrees to take part in the case. The number of cases they accept in a year is usually very low, between hundred to five hundred of over 7000 cases being sent to them annually.
