For the lone open position of Secretary of War, Van Buren first approached William Cabell Rives, who had sought the vice presidency in 1836. After Rives declined to join the cabinet, Van Buren appointed Joel Roberts Poinsett, a South Carolinian who had opposed secession during the Nullification Crisis. Van Buren's cabinet choices were criticized by Pennsylvanians such as James Buchanan, who argued that their state deserved a cabinet position as well as some Democrats who argued that Van Buren should have used his patronage powers to augment his power. However, Van Buren saw value in avoiding contentious patronage battles, and his decision to retain Jackson's cabinet made it clear that he intended to continue the policies of his predecessor. Additionally, Van Buren had helped select Jackson's cabinet appointees and enjoyed strong working relationships with them.