This single source, which is an excerpt from a Wikipedia article, provides a biographical overview of John Anton Blatnik, an American politician. It details his service as a U.S. Congressman from Minnesota's 8th district, highlighting his long tenure from 1947 to 1974. Key aspects of his career are noted, including his work on the Clean Water Act and his service as Chairman of the Public Works Committee. Additionally, the text covers his early life, military service in World War II with the Office of Strategic Services, and his personal details, such as his birth and death dates, and the naming of the John A. Blatnik Bridge in his honor.