Marxism–Leninism is a political philosophy or worldview founded on ideas of Marxism and Leninism, and seeks to establish socialist states and develop them further. Marxist–Leninists espouse a wide array of views depending on their understanding of Marxism and Leninism, but generally they support the idea of a vanguard party, one-party state, state-dominance over the economy, internationalism, opposition to bourgeois democracy, and opposition to capitalism. It remains the official ideology of the ruling parties of China, Cuba, Laos, and Vietnam, and was the official ideology of the Communist Party of the Soviet Union (CPSU) and the other ruling parties making up the Eastern Bloc.