Mark Levin is an American lawyer, author, and conservative talk radio host. He is best known for his nationally syndicated radio show, "The Mark Levin Show," where he discusses political issues and current events from a conservative perspective. Levin has also served as a chief of staff for a former Attorney General and has written several bestselling books on politics and history. In addition to his radio career, Levin is a prominent figure in the conservative movement and often appears on television as a political commentator. He is the founder of the Media Research Center and has been influential in shaping conservative thought through his writings and public speaking engagements.