great question
Note by Henry Craik to Letter 36 from Journal To Stella

The debate on the Peace. In the interval between this and the preceding letter, the negotiations for the Peace, on which the fate of the Ministry seemed to rest, had made some progress; but considerable opposition had to be encountered in the House of Lords. In order to influence the public, Swift now wrote perhaps the most powerful of his political pamphlets, The Conduct of the Allies, which had a great success, running through five editions in a few weeks. Two other dangers threatened the Ministry, and almost made Swift despair: the first was the growing breach between Harley and St. John; the second, the suspicions of the Queen's good faith to the Ministers, influenced as she was by the Duchess of Somerset.