Days before the election, Kennedy posted on social media that a Trump White House would advise all U.S. water systems to remove fluoride from the public water supply, which goes against public health recommendations yet jibes with a large number of people who question the safety of fluoridating water.

Robert F. Kennedy Jr. has called for an end to the public health practice of putting fluoride in water. Why it matters: If he's confirmed as secretary of the Department of Health and Human Services in the new Trump administration,