蔣介石與李宗仁兩位是影響近代民國的重要人物，中華民國政府播遷來台灣，也與兩人在政治與軍事上的紛爭與矛盾，有著密不可分的關係。李宗仁運用因抗日戰爭時期累積的軍功、聲望，與北平行轅時期於華北地區所累積的仰望，加上里肌的地方勢力，於民國37年（1948年）順利當選中華民國第一屆副總統。隨後，李氏更運用國民黨在國共戰爭中的失利，並結合黨內主和派逼迫蔣介石下野。李宗仁一上台的首要任務即是國共和談，因對共產黨認識的不深，且抱有「劃江而治」的幻象，最終國共和談以失敗收場。蔣介石在國共和談失敗之後，藉由非常委員會的建立與召開，使政治體制恢復至訓政時期的「以黨領政」，並以中央非常委員會主席的身分，處理軍政事務。
廣州失陷後，各方請蔣氏復職的聲音越來越多；而身為代總統的李氏則在重慶情況危急時，以胃疾復發為由，經香港赴美就醫，並藉由養病與爭取美援為由滯美不歸。李在美表示自己當初非代理蔣氏個人，而係代理蔣氏所遺留之總統職位，蔣氏復任總統為違法之見，拒絕請辭代總統職位，使問題陷入僵局；後依據憲法第四十九條，蔣氏於民國39年（1950年）3月1日復行視事。在毛邦初案中，李更選擇與國民政府對立，引發諸多人士不滿，最後其副總統職位被罷免，蔣李二人多年的紛爭漸漸畫下休止符。
Jieshi and Li Zongren were two important figures who influenced the modern Republic of China. The relocation of the government of the Republic of China to Taiwan was also closely related to the political and military disputes and contradictions between the two. Li Zongren was successfully elected as the first vice president of the Republic of China in the 37th year of the Republic of China (1948) by using the military achievements and reputation accumulated during the Anti-Japanese War, the admiration accumulated in North China during the period of parallelism with the North, and the local power of the inner muscles. Later, Lee took advantage of the Kuomintang's defeat in the Kuomintang-Communist War and combined with the party's moderate faction to force Chiang Kai-shek to step down.
Li Zongren's first task when he came to power was the peace talks between the Kuomintang and the Communist Party. Because he didn't have a deep understanding of the Communist Party and he had the illusion of "ruling the river", the peace talks between the Kuomintang and the Communist Party ended in failure. After the failure of the Kuomintang-Communist peace talks, Chiang Kai-shek, through the establishment and convening of the Extraordinary Committee, restored the political system to the "party-led government" during the political training period, and handled military and political affairs as the chairman of the Central Extraordinary Committee.
After the fall of Guangzhou, there were more and more voices calling for Chiang to be reinstated; and when the acting president was in critical condition in Chongqing, Li went to the United States for medical treatment via Hong Kong on the grounds that his stomach disease had recurred. Fighting for US aid is the reason for staying in the United States and not returning. Li Zaimei stated that she was not acting as an agent of Jiang himself, but of the presidency left by Chiang. According to the article, Chiang resumed his duties on March 1 in the 39th year of the Republic of China (1950). In Mao Bangchu's case, Li Geng chose to oppose the Nationalist government, which caused dissatisfaction among many people. In the end, his vice president was dismissed, and the years of disputes between Jiang and Li gradually came to an end.
