Health and Human Services secretary Robert F. Kennedy, Jr. has weathered ample family tragedy, drug and alcohol addiction, infection from an alleged brain worm, and a few sex scandals both minor and major — and now he's weathering condemnation from his own political allies that could presage a genuine crash out.

Amid his single-minded quest against vaccines, the 71-year-old health secretary seems to have made a serious miscalculation when he chose to fire Centers for Disease Control and Prevention director Susan Monarez at the end of last month, after she called out his scientific "sabotage" in the Wall Street Journal.

Even ahead of his hearing before the Senate Finance Committee this week — in which Kennedy claimed that Monarez told him she was not "trustworthy" — GOP senators previousl

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