 During 1918, Cheng Biguang aligned himself with the Guangxi clique, and was assassinated.The Extraordinary Session of Parliament was controlled by the Guangxi clique, and was restructured in May 1918 by replacing the office of generalissimo with a committee of seven executives consisting of Sun, Tang Shaoyi, Wu Tingfang, and Tang Jiyao on one side and Lu Rongting, Cen Chunxuan, and Lin Baoyi on the other.Feeling marginalized, Sun Yat-sen resigned as the generalissimo, and left Guangzhou for Shanghai.