Donald Trump announced Friday that Kennedy family scion and notorious vaccine skeptic Robert F. Kennedy Jr. would play a "big role" in his administration if the Republican former president were to win next week's election.

Now it’s being called out by Robert F. Kennedy, Jr. —possibly on track to become head of health initiatives for the incoming presidential administration—as a practice that should be halted. He recently asserted that Donald Trump would push to remove fluoride from drinking water on his first day in office.

Not much is known about what role Kennedy could actually serve in the second Trump administration. Here's some of what we do know.

Donald Trump associate and noted health nut Robert F. Kennedy Jr. still has federal health regulators in his crosshairs. On Wednesday, RFK, who is tipped to have a major role in Trump's administration,

Kennedy Jr. is in the spotlight because he might serve in President-elect Donald Trump’s cabinet. It seems the job will be in the world of public health, which could mean some changes at the century-old Food and Drug Administration,

RFK Jr., a longtime anti-vaccine activist, to play a role in Trump administration and potentially influence how the FDA and CDC approach the lifesaving shots.