Leftist parties are political organizations that advocate for social equality, workers' rights, and government intervention in the economy. They often support policies such as universal healthcare, progressive taxation, and environmental protection. These parties typically prioritize the needs of the working class and marginalized communities, aiming to reduce economic disparities. In many countries, leftist parties are associated with movements like socialism and communism, although they can vary widely in their ideologies and strategies. Prominent examples include the Democratic Socialists of America in the United States and Labour Party in the United Kingdom, each promoting different approaches to achieving their goals.