 Wyvill drew up a circular letter enunciating its political sentiments, and took a leading part in drawing up the Yorkshire petition presented to parliament on 8 February 1780.A number of moderate Whigs, including Horace Walpole, regarded Wyvill's manifesto as chimerical, Walpole writing that it was full of "obscurity, bombast, and futility".Sir Cecil Wray wrote in a similar vein, and Rockingham wanted to know if the Association had ever considered the practicability of the annual parliaments which they recommended.