Question 54
Courts
How many Supreme Court justices are usually needed to decide a case?

The U.S. Supreme Court has nine justices. A majority vote of five justices is needed to decide most cases, ensuring that decisions reflect the view of more than half of the Court. 

Other questions related to Courts
Courts
How long do Supreme Court justices serve?
QUESTION #55
Courts
Who appoints federal judges? 
QUESTION #45
Courts
Supreme Court justices serve for life. Why?
QUESTION #56

Section "Learn and Explore" uses official instructions and media files of US Citizenship and Immigration Services, US National Museum of American History, The Smithsonian Institution and other governmental and public organization.