PolitiFact is live fact-checking the confirmation hearings for Robert F. Kennedy Jr. and Kash Patel, two of President Donald Trump's Cabinet picks.

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.

Robert F. Kennedy Jr. was confronted with a number of his baseless claims and a vexing abortion issue. But Republican senators treaded lightly.

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

Democrats harshly criticized President Donald Trump for a news conference Thursday in which he said that his predecessors and diversity were to blame for Wednesday night’s fatal collision of an Army helicopter and an American Airlines passenger plane landing at Ronald Reagan National Airport.

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

During confirmation hearings, Robert F. Kennedy Jr., Kash Patel and Tulsi Gabbard faced tough senate scrutiny on their controversial pasts.

If confirmed by the Senate, Kennedy would head the Department of Health and Human Services (HHS), which oversees many of the country’s health agencies, from the Food and Drug Administration (FDA) to the Centers for Disease Control and Prevention (CDC).

To watch Kennedy's confirmation hearing, viewers can look to the Senate Finance Committee website on Wednesday and the Senate Health, Education, Labor and Pension Committee website on Thursday. C-SPAN and a plethora of broadcast and cable media outlets will broadcast live what is likely to be a contentious confirmation hearing on television.

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

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.