What contributed to the downfall of China's republic? Chiang Kai-shek seized power as a dictator. Warlords overthrew president Sun Yat-sen. China's presidents did not have enough power. Nationalists attacked the republican government.

The downfall of China's republic can be attributed to several interrelated factors, including: 1. **Chiang Kai-shek's Dictatorship**: After Sun Yat-sen's death, Chiang Kai-shek emerged as a prominent leader of the Nationalist Party (Kuomintang). His authoritarian rule alienated many groups, including those who initially supported the Nationalist cause. His focus on consolidating power often led to the suppression of dissent and opposition, which weakened the legitimacy of the republican government. 2. **Warlord Era**: Following the fall of the Qing Dynasty, China entered a period known as the Warlord Era (1916-1928), where various military leaders (warlords) controlled different regions of the country. This fragmentation made it difficult for any central government to establish authority, undermining the republican government and leading to widespread instability. 3. **Weakness of Presidents**: The republican government struggled with weak leadership. Many presidents lacked the authority and support needed to govern effectively. This lack of strong leadership contributed to political fragmentation and the inability to unify the country under a stable government. 4. **Nationalist Attacks on the Republican Government**: The Nationalists, under Chiang Kai-shek, often viewed the republican government as ineffective and corrupt. Their military campaigns against warlords and other factions sometimes turned into attacks on the republican government itself, further destabilizing the political landscape. In summary, the combination of authoritarian rule, the influence of warlords, weak presidential leadership, and internal conflicts within the Nationalist movement contributed significantly to the downfall of China's republic.