<Tr> <Td> First Circuit </Td> <Td> Justice Breyer </Td> </Tr> <Tr> <Td> Second Circuit </Td> <Td> Justice Ginsburg </Td> </Tr> <Tr> <Td> Third Circuit </Td> <Td> Justice Alito </Td> </Tr> <Tr> <Td> Fourth Circuit </Td> <Td> Chief Justice Roberts </Td> </Tr>

The constitution does not specify the size of the supreme court