More than 15,000 doctors have signed a letter urging senators to vote against confirming Robert F. Kennedy Jr. as the secretary of health and human services, citing his anti-vaccine views and promotion of conspiracy theories. The letter, posted by the Committee to Protect Health Care, states that Kennedy is unqualified and dangerous for the role. Despite opposition from health care professionals and public health advocates, Kennedy has been meeting with senators in anticipation of his confirmation hearing. Critics warn that his appointment could jeopardize public health and have launched campaigns to highlight his controversial views and actions.