More than 750 employees across the Department of Health and Human Services sent a signed letter to members of Congress and Health Secretary Robert F. Kennedy Jr. on Wednesday morning, calling on the secretary to stop spreading misinformation.

Jesse Watters: "Why do you wear jeans when you work out." RFK Jr: "Well, I just started doing that a long time ago... I would go hiking in the morning and then i'd go straight to the gym." Robert F. Kennedy Jr. explains why he was wearing jeans during the "Pete and Bobby… pic.twitter.com/j5HIIRntGP

Health Secretary Robert F. Kennedy Jr. and Defense Secretary Pete Hegseth competed in a fitness challenge of 50 pullups and 100 pushups under five minutes.

Chris Pratt says he gets along well with Robert F. Kennedy Jr., calling the Secretary of Health and Human Services "funny" and "great."

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."

The controversial health secretary sparked confusion online after he was seen working out in jeans alongside Hegseth, who was wearing athletic shorts

The AAP published its own vaccine schedule in a break from federal guidance. HHS secretary RFK Jr. took to social media to respond.

Health and Human Services Secretary Robert F. Kennedy Jr. and Defense Secretary Pete Hegseth faced off in the "Pete & Bobby Challenge," a competition where they challenged each other to 50 pull-ups and 100 push-ups.

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.