What are the duties of Chief Justice John Glover Roberts, Jr?

What are the duties of Chief Justice John Glover Roberts, Jr?

Third person Expository writing. Write a three page MLA style essay on the topic below, using three sources (only ONE Web source). Include an annotated Works cited page and use parenthetical citation. Highlight thesis in two colors. Expository Essay Topic(Inform and explain) What are the duties of Chief Justice John Glover Roberts, Jr?