In his first two years on the job, Health and Human Services Secretary Robert F. Kennedy Jr. has become a polarizing figure on Capitol Hill, largely because of his vaccine skepticism and distrust of the status quo. But one of his quieter pushes — ending animal testing in medical research — has earned him accolades among […]

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In his first two years on the job, Health and Human Services Secretary Robert F. Kennedy Jr. has become a polarizing figure on Capitol Hill, largely because of his vaccine…