The politics of Hong Kong takes place in a framework of a political system dominated by its quasi-constitutional document, the Hong Kong Basic Law, its own legislature, the Chief Executive as the head of government and of the Special Administrative Region and of a politically constrained multi-party presidential system. The Government of the Hong Kong Special Administrative Region of the People's Republic of China is led by the Chief Executive, the head of government. The Economist Intelligence Unit rated Hong Kong a "Hybrid regime" in 2020.