The man who hopes to be President Donald Trump's health secretary said he needed to see data showing vaccines are safe, but when an influential Republican senator did so, he dismissed it.

Sen. Bill Cassidy, the top Republican on the Senate Committee on Health, Education, Labor and Pensions, concluded Thursday's hearing by saying he was "struggling" with the nomination due to Kennedy's vaccine positions. Kennedy notably refused to say vaccines don't cause autism as he faced pointed question from lawmakers.

The data is there,” GOP Sen. Bill Cassidy bluntly told the nominee for secretary of health and human services.

Sen. Elizabeth Warren discussed her viral back-and-forth with RFK Jr. on Thursday during an interview on "The View," saying the U.S. could be left with "no vaccines."

R obert F. Kennedy Jr., President Trump’s pick to head the U.S. Department of Health and Human Services (HHS), was grilled by Democratic senators during his confirmation hearing on Jan. 29 and Jan. 30, who confronted him with conspiratorial and conflicting statements he has made about COVID-19.

As Robert F. Kennedy Jr. faced skeptical senators Thursday in the second day of his confirmation hearing to lead the department of Health and Human Services, Sen. Bill Cassidy confronted Kennedy about vaccines.

Kennedy’s bid to serve as America’s top health official may be decided by a handful of Republicans, including several senators who questioned him Thursday.

During a sometimes contentious confirmation hearing, Robert F. Kennedy Jr. refused to confirm that he believes vaccines do not cause autism.

Kennedy Jr. faced a plethora of tough questions on vaccines, abortion and public health policy during his Senate confirmation hearing Wednesday as President Donald Trump’s pick for secretary of Health and Human Services (HHS).

Mary Holland, head of Kennedy-founded Children's Health Defense, spoke to POLITICO after attending his confirmation hearing.