Republican Sen. Bill Cassidy, R-La., told Robert F. Kennedy Jr. on Thursday that he has been "struggling with your nomination" to lead the U.S. Department of Health and Human Services. Cassidy's comments came during the second hearing this week for Kennedy, President Donald… pic.twitter.com/zlLMfc2D0g

Robert F. Kennedy Jr.’s nomination to be the nation’s top health official is uncertain after a key Republican joined Democrats to raise persistent concerns over the nominee’s deep skepticism of routine childhood vaccinations that prevent deadly diseases.

Tulsi Gabbard, Kash Patel and Robert F. Kennedy Jr. are among Trump's more controversial nominees, and faced tough questions from senators Thursday.

The issue isn’t only his troubling views but whether a complex federal agency can function effectively under his leadership.

The recent Senate confirmation hearings for Robert F. Kennedy Jr. presented a striking scene that would confuse a time traveler from 10 years ago. Democratic lawmakers took turns excoriating a man who once embodied their ideals. Sen. Bernie Sanders, seemingly grasping for gotchas, was reduced to questioning Kennedy about baby clothing merchandise.

Robert F. Kennedy Jr. was back in the hot seat being grilled by senators ahead of a confirmation vote in his effort to become the director of Health and Human Services.

Robert F. Kennedy Jr. has spasmodic dysphonia, a voice disorder caused by a malfunction in the brain. Here’s what to know.

Robert F. Kennedy Jr. has said vaccines are not safe. His support for abortion access has made conservatives uncomfortable.

Kash Patel dodges questions on Jan 6 and 2020 election during FBI confirmation hearing - RFK Jr, Tulsi Gabbard and Kash Patel faced off with senators over past statements and conspiracy beliefs

If approved, Kennedy will control a $1.7 trillion agency that oversees food and hospital inspections, hundreds of health clinics, vaccine recommendations and health insurance for roughly half the country.

Robert F. Kennedy Jr. made several disturbing comments during his first Senate confirmation hearing Wednesday suggesting that, as Donald Trump’s secretary of health and human services, he’s hoping to limit access to the abortion pill mifepristone.