Mr. Kennedy appears to have most Republicans behind him as he seeks the job of health secretary, though he couldn’t escape his past stances on vaccines and abortion.

Robert F. Kennedy Jr. struggled to answer questions about Medicare and Medicaid, programs that affect tens of millions of Americans.

Cassidy is expected to challenge RFK Jr. on his vaccine skepticism and views on public health in today's confirmation hearing.

Robert F. Kennedy Jr., a former presidential candidate and environmental activist, endorsed Donald Trump last year and threw his weight behind a campaign to “Make America Healthy Again.” For the past two decades he has been best known for airing skeptical views on vaccines.

No Republicans have said publicly they would oppose Robert F. Kennedy Jr. to run Health and Human Services. Sen. Mitch McConnell (R., Ky.), a polio survivor, and centrist Republican Sens. Susan Collins of Maine and Lisa Murkowski of Alaska are considered possible defectors.

WASHINGTON — Robert F. Kennedy Jr.'s famous name, populist stances and loyal following have earned him President Donald Trump’s support, but will that get him the votes he needs from the Republican-controlled Senate to become the nation’s top health official?

President Donald Trump's controversial pick to lead the Department of Health and Human Services, Robert F. Kennedy Jr., will testify in two Senate hearings starting Wednesday.

RFK Jr. claimed he is not “anti-vaccine” and appeared unfamiliar with key aspects of healthcare insurance programs in his confirmation hearing.

Caroline Kennedy said in a scathing letter about her cousin, Robert F. Kennedy Jr., that she felt "an obligation to speak out."

In a contentious confirmation hearing to become the nation’s top health official, Robert F. Kennedy Jr. struggled Wednesday to answer questions about Medicare and Medicaid, programs that affect tens of millions of Americans,