KFF Health News Jan 20 2026 When a "Make America Healthy Again" summit was held at the posh Waldorf Astoria in Washington, the line of attendees stretched down the block. The daylong, invitation-only event in November featured a who's who of MAHA luminaries. Vice President JD Vance attended, as did Health and Human Services Secretary Robert F. Kennedy Jr., the leader of the ad hoc movement whose members rail against vaccines, Big Pharma, and ultraprocessed food. During a fireside chat that