 Later, stressing that he had no slaves, Ellsworth spoke twice before the convention, on August 21 and 22, in favor of slavery being abolished.He also played an important role in keeping the concept of judicial review out of the Constitution.Along with James Wilson, John Rutledge, Edmund Randolph, and Nathaniel Gorham, Ellsworth served on the Committee of Detail, which prepared the first draft of the Constitution, based on resolutions that had already been passed by the Convention.