Kennedy Jr. has been sworn in as the nation's next health secretary Thursday, his first order of business will be to investigate America's problem with chronic illnesses. White House press secretary Karoline Leavitt told Fox News earlier that President Donald Trump would sign an executive order creating a "Make America Health Again" commission and direct Kennedy "to investigate this chronic crisis plaguing our country and the minds and the bodies of the American people.

The longtime vaccine skeptic and "MAHA" movement leader was confirmed earlier Thursday in a near-party line Senate vote.

Robert F. Kennedy Jr., one of America's most notorious vaccine skeptics, will run the country's leading health agency.