RFK Jr. hasn't completely alienated all his famous in-laws, however. Earlier this week, Chris Pratt came to the defense of the politician, whose cousin Maria Shriver is the mother of Pratt's wife, Katherine Schwarzenegger.

More than 750 HHS employees sent a signed letter to members of Congress and Health Secretary RFK Jr., calling on him to stop spreading misinformation.

Annals of Internal Medicine editor Christine Laine says she won’t retract the study, as demanded by Robert F. Kennedy Jr., and "we’re not changing what we do because of threats."

Chris Pratt appeared on Bill Maher’s 'Club Random' podcast on Monday, Aug. 18, and briefly touched on the controversial political views of Robert F. Kennedy Jr., who is the cousin of Pratt's wife, Kat

RFK Jr. promised to identify the causes of autism but has eliminated parts of his agency actively investigating them and has cut millions in funding for autism research.

U.S. Health Secretary Robert F. Kennedy Jr. has promised "a massive testing and research effort" to determine what he says are the environmental causes of autism. Under Kennedy's direction, however, the government recently ended funding for studies looking into some of those environmental factors.

The 71-year-old’s odd workout clothing choice caught the internet’s attention again this week after Kennedy posted a video with Defense Secretary Pete Hegseth.