Thom Hartmann is an American progressive talk radio host, author, and political commentator. He is best known for his nationally syndicated radio program, "The Thom Hartmann Program," where he discusses various political and social issues from a progressive perspective. Hartmann has written numerous books on topics such as politics, economics, and environmentalism, contributing to public discourse on these subjects. In addition to his radio show, Hartmann has appeared on television and has a significant online presence, including a YouTube channel. He often engages with topics related to social justice, corporate influence in politics, and climate change, aiming to educate and inspire his audience to take action on pressing issues.