WASHINGTON, DC - SEPTEMBER 04: Health and Human Services Secretary Robert Kennedy Jr. appears before the Senate Finance Committee at the Dirksen Senate Office Building on September 04, 2025 in Washington, DC. The committee met to hear testimony on President Trump's 2026 health care agenda. (Photo by Andrew Harnik/Getty Images) Andrew Harnik/Getty Images

The Trump administration and Republicans have launched headlong into a broad overhaul of the American vaccine system – despite it being an overhaul that very few Americans seem to actually want .

And there are increasing signs that it’s taken a political toll on the man behind it: US Health and Human Services Secretary Robert F. Kennedy Jr.

For the past few years, Kennedy’s image numbers have proven remarkably resilient. Even as he

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