Robert F. Kennedy Jr. has lived several careers in one: environmental lawyer, author, presidential candidate, and now the head of the U.S. Department of Health and Human Services. Born into one of America's most famous political families, he built a decades-long legal career fighting polluters before becoming one of the country's most talked-about public figures.

Here are 18 verified facts about his family, career, and the twists that brought him from the courtroom to the cabinet.