Alexandra Sifferlin, a health and science editor for Times Opinion, hosted an online conversation on Wednesday with the ...

The recent Senate confirmation hearings for Robert F. Kennedy Jr. presented a striking scene that would confuse a time ...

Robert F. Kennedy Jr., the nominee to lead the Department of Health and Human Services, made disputed claims before the ...

Robert F. Kennedy Jr. said he wasn’t antivaccine as senators pressed on his past remarks, in the first of two days of ...