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.

The man who hopes to be President Donald Trump’s health secretary says he needs to see data showing vaccines are safe, but he dismissed the evidence shown by an influential Republican senator.

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.