They voted in unison for the prominent purveyor of vaccine misinformation even as it became even clearer that they were losing this battle on the right.

The U.S. Senate Finance Committee could vote as soon as Tuesday on Robert F. Kennedy Jr.’s controversial nomination to be secretary of Health and Human Services, the cabinet position in charge of protecting the health of the American people.

GOP senators say they'll keep a close eye on RFK Jr., the long-time vaccine critic poised for the U.S.'s top health care role.