The politics of Russia function within the framework of the federal semi-presidential republic of Russia. According to the Constitution of Russia, the President of Russia is head of state, and of a multi-party system with executive power exercised by the government, headed by the Prime Minister, who is appointed by the President with the parliament's approval. Legislative power is vested in the two houses of the Federal Assembly of the Russian Federation, while the President and the government issue numerous legally binding by-laws.