Robert F. Kennedy Jr. has been hard at work as a lawyer, an environmentalist, and politician since the 1980s. In 2025, he was named the U.S. secretary of health and human services by President Donald Trump. This biography presents the life of RFK Jr. in age-appropriate detail for lower elementary readers, starting with his politically connected family and leading to his present-day pursuits. The text supports social studies curricula and aids knowledge building, a key component of the science of reading. A concluding timeline helps readers review what they have read.