 Meanwhile, though, it had become common knowledge that Li Huaiguang despised several officials that Emperor Dezong trusted — the chancellor Lu Qi and other ministers Zhao Zan () and Bai Zhizhen () — and that he would recommend to Emperor Dezong that those officials be removed.When Lu heard this, he believed that he had to prevent a meeting between Emperor Dezong and Li Huaiguang at all costs, and therefore suggested to Emperor Dezong order Li Huaiguang to attack Chang'an at once.Emperor Dezong agreed, and ordered Li Huaiguang to rendezvous with Li Sheng, Li Jianhui (), and Yang Huiyuan () to attack Chang'an.