RFK Jr. is back on the Hill for a second day of testimony, this time before a different Senate committee, after a first round that was contentious but saw no GOP defections.

Robert F. Kennedy Jr. will stand before the Senate Finance Committee on Wednesday and the Senate Health, Education, Labor and Pension Committee Thursday as President Donald Trump's nominee to lead the Department of Health and Human Services.

Kathleen Sebelius, who served under Barack Obama, said she's "very concerned" that Kennedy doesn't "understand the agency that he's been nominated to run."

Robert F. Kennedy Jr., Trump's nominee to lead the Department of Health and Human Services, faced his second day of confirmation hearings Thursday.

Robert F. Kennedy Jr. faced about 3.5 hours of questioning on topics including his past comments on vaccines and abortion during the first of his two confirmation hearings.

Robert F. Kennedy Jr. faced aggressive questions about his skepticism of vaccines and other issues during the first of two scheduled Senate confirmation hearings.

Robert F. Kennedy Jr., President Donald Trump's HHS secretary nominee, will say he's not "anti-vaccine" on Wednesday, the first of two straight days of Senate confirmation hearings.

Robert F. Kennedy Jr. delivers his opening statement ahead of his first confirmation hearing with the Senate Finance Committee on Wednesday (watch it live, or the full replay when it is over here) ROBERT F.

Robert F. Kennedy Jr., President Trump's pick to run the Department of Health and Human Services, is grilled on his vaccine skepticism during his first Senate confirmation hearing. Dr. Amesh Adalja, a senior scholar at the Johns Hopkins Center for Health Security,

HHS announced plans to reevaluate agency practices to ensure they meet requirements under the Hyde Amendment, which prohibits federal funds from being used for elective abortions.

Robert F. Kennedy, Jr. said he would “commit to not firing anyone who’s doing their job” when pressed by Sen. Mark Warner (D., Va.) about his intent to let go of many employees at the Health and Human Services Department.

Robert F. Kennedy Jr. was grilled on his past vaccine and abortion views, as well as his understanding of HHS programs during his confirmation hearing today. NBC News White House Correspondent Vaughn Hillyard,