Philippine trips as Secretary of War, Taft went to Japan, and met with officials there. The meeting in July 1905 came a month before the Portsmouth Peace Conference, which would end the Russo-Japanese War with the Treaty of Portsmouth. Taft met with Japanese Prime Minister Katsura Tarō. After that meeting, the two signed a memorandum. It contained nothing new but instead reaffirmed official positions: Japan had no intention to invade the Philippines, and the U.S. that it did not object to Japanese control of Korea. There were U.S. concerns about the number of Japanese laborers coming to the American West Coast, and during Taft's second visit, in September 1907, Tadasu Hayashi, the foreign minister, informally agreed to issue fewer passports to them. Presidential election of 1908 Gaining the nomination Roosevelt had served almost three and a half years of McKinley's term. On the night of his own election in 1904, Roosevelt publicly declared he would not run for reelection in 1908, a pledge he quickly regretted. But he felt bound by his word. Roosevelt believed Taft was his logical successor, although the War Secretary was initially reluctant to run. Roosevelt used his control of the party machinery to aid his heir apparent. On pain of loss of their jobs, political appointees were required to support Taft or remain silent. A number of Republican politicians, such as Treasury Secretary George Cortelyou, tested the waters for a run but chose to stay out. New York Governor Charles Evans Hughes ran, but when he made a major policy speech, Roosevelt the same day sent a special message to Congress warning in strong terms against corporate corruption. The resulting coverage of the presidential message relegated Hughes to the back pages. Roosevelt reluctantly deterred repeated attempts to draft him for another term. Assistant Postmaster General Frank H. Hitchcock resigned from his office in February 1908 to lead the Taft effort. In April, Taft made a speaking tour, traveling as far west as Omaha before being recalled to go to Panama and straighten out a contested election. At the 1908 Republican National Convention in Chicago in June, there was no serious opposition to him, and he gained a first-ballot victory. Yet Taft did not have things his own way: he had hoped his running mate would be a midwestern progressive like Iowa Senator Jonathan Dolliver, but instead the convention named Congressman James S. Sherman of New