<page_title> 94th United States Congress </page_title> <section_title> Senate </section_title> <table> <cell> John O. Pastore (D) <col_header> Vacator </col_header> </cell> <cell> Resigned December 28, 1976 to give successor preferential seniority. Successor appointed December 29, 1976 to finish the term, having already been elected to the next term. <col_header> Reason for change </col_header> </cell> <cell> John Chafee (R) <col_header> Successor </col_header> </cell> <cell> December 29, 1976 <col_header> Date of successor's formal installation </col_header> </cell> </table>
John O. Pastore (D) served as the senator until December 28, 1976 which was later served by John Chafee (R) from December 29, 1976.