Caroline Kennedy on Tuesday cautioned senators against confirming her cousin, Robert F. Kennedy Jr., as Department of Health and Human Services Secretary in a letter questioning his views on vaccines, detailing alleged depraved behavior and saying he has an "addiction to attention and power” one day before his confirmation hearing starts.

An advocacy group founded by former Vice President Mike Pence is escalating its fight against Robert F. Kennedy Jr., this time with an ad that uses President Trump’s past criticisms of Kennedy to argue against his nomination to lead the Department of Health and Human Services (HHS).

A conservative group founded by former Vice President Mike Pence is opposing Robert F. Kennedy Jr.’s nomination due to his past support for abortion.