Health experts are worried about Robert F. Kennedy Jr. could influence former President Trump’s public health policies in a second term, after the prominent anti-vaccine advocate suspended his independent campaign for president and jumped aboard Trump’s. Upon announcing the move last week, Kennedy said Trump had “asked to enlist me in his administration.” Kennedy’s former running mate, Nicole Shanahan, said earlier this month Kennedy would do an “incredible job” as secretary of Health and Human Services. Although Trump has not committed to a specific role for Kennedy, he appointed his former opponent to his presidential transition team, and in a...