Robert F. Kennedy Jr. is going viral on social media after he was caught on camera adding a mysterious blue liquid to his in-flight beverage, and internet sleuths believe they know what it is. The leading theory among X users is that the prospective health secretary was dosing his drink with methylene blue.

Kennedy Jr. was spotted on a plane adding a blue liquid to his drink in a viral video that has sparked speculation online. Newsweek reached out to a representative for RFK Jr. outside of regular working hours via email for comment.

Conspiracy theorist Robert F. Kennedy Jr. is going viral again - this time for squirting blue liquid into a glass while flying on a plane. The clip circulating on online shows the 72-year-old anti-vaxxer - who is about to run the U.

Robert F. Kennedy Jr. cleared a crucial hurdle for confirmation as Health and Human Services secretary. Here's what happens next in the Senate

The Senate Finance Committee on Tuesday voted along party lines to support the nomination of Robert F. Kennedy Jr. as Health and Human Services secretary—a key victory for one of President Donald Trump’s most controversial cabinet picks, after some GOP lawmakers remained on the fence due to Kennedy’s claims about vaccines.

The Senate Finance Committee will vote Tuesday on Robert F. Kennedy Jr's appointment to direct the U.S. Department of Health and Human Services.