Senate Republican leader Mitch McConnell, a childhood polio survivor, said any of President-elect Donald Trump’s nominees seeking confirmation should “steer clear” of efforts to discredit the polio vaccine. “Efforts to undermine public confidence in proven cures are not just uninformed — they’re dangerous,” McConnell said in a Friday statement. “Anyone seeking the Senate’s consent to serve in the incoming Administration would do well to steer clear of even the appearance of association with such efforts.” The 82-year-old lawmaker’s statement appeared to be directed at Trump’s nominee for health secretary, Robert F. Kennedy Jr., after a report that one of his advisors filed a petition to revoke approval for the polio vaccine in 2022. It was a sign that Kennedy, who has long advanced the debunked idea that vaccines cause autism, could face resistance in the soon-to-be GOP-controlled Senate. “Mr. Kennedy believes the Polio Vaccine should be available to the public and thoroughly and properly studied,” said Katie Miller, the transition spokeswoman for Kennedy, in response to questions. The New York Times reported Friday that a …