Leftist movements refer to political and social movements that advocate for progressive changes, often focusing on issues like social justice, economic equality, and workers' rights. These movements typically challenge existing power structures and promote policies that aim to redistribute wealth and resources. They can be found in various forms, including labor unions, environmental groups, and political parties, such as the Democratic Socialists of America. Historically, leftist movements have played significant roles in shaping policies and reforms across the globe. They have been involved in major events, such as the French Revolution and the rise of communism in the 20th century. Today, leftist movements continue to influence contemporary politics, advocating for issues like climate change action and universal healthcare.