Scholars remain divided on whether Jefferson truly condemned slavery and how he changed. Francis D. Cogliano traces the development of competing emancipationist then revisionist and finally contextualist interpretations from the 1960s to the present. The emancipationist view, held by the various scholars at the Thomas Jefferson Foundation, Douglas L. Wilson, and others, maintains Jefferson was an opponent of slavery all his life, noting that he did what he could within the limited range of options available to him to undermine it, his many attempts at abolition legislation, the manner in which he provided for slaves, and his advocacy of their more humane treatment. The revisionist view, advanced by Paul Finkelman and others, criticizes him for holding slaves, and for acting contrary to his words. Jefferson never freed most of his slaves, and he remained silent on the issue while he was president. Contextualists such as Joseph J. Ellis emphasize a change in Jefferson's thinking from his emancipationist views before 1783, noting Jefferson's shift toward public passivity and procrastination on policy issues related to slavery. Jefferson seemed to yield to public opinion by 1794 as he laid the groundwork for his first presidential campaign against Adams in 1796.