Kyra Kennedy, 29, is the youngest daughter of health secretary nominee Robert F. Kennedy Jr.

Robert F. Kennedy Jr. cleared a crucial hurdle for confirmation as Health and Human Services secretary. Here's what happens next in the Senate

WASHINGTON (AP) — Robert F. Kennedy Jr., the controversial environmental lawyer turned public health critic, is set to find out on Tuesday if he has cleared the first hurdle to become the nation’s top health official when the Senate Finance Committee votes on his nomination.

Robert F. Kennedy Jr.'s nomination passes crucial vote despite Democrats' 'grave concerns‘ - Kennedy has repeatedly promoted the debunked link between vaccines and autism

Robert F. Kennedy Jr. will face the Senate for two days of confirmation hearings in a bid become the leader of Health and Human Services.

The health committee chairman, Sen. Bill Cassidy, R-La., also has expressed concerns about Kennedy's anti-vaccine work. A physician, Cassidy said earlier this month he “had a frank conversation” and “spoke about vaccines at length” with Kennedy. On Tuesday, Cassidy told reporters that he is still unsure if he is backing Trump’s nominee.

Kennedy Jr. , a vocal vaccine skeptic and activist lawyer, appeared on track to become the nation’s health secretary after winning the crucial support of Republican Sen. Bill Cassidy, a doctor who says Kennedy has assured him he would not topple the nation’s childhood vaccination program.

Kennedy Jr. is one step closer to becoming the country's top health official, scoring enough votes from the Senate Finance Committee Tuesday, Jan. 4 to advance his nomination to the full Senate. During his tumultuous confirmation hearing,

Sanders, the senior minority party member on the committee, pressed Kennedy to concede that health care was a human right, as his father, Robert F. Kennedy, and his uncles, John F. Kennedy and Edward Kennedy, had done. Kennedy again did not give a definitive answer.