Robert F. Kennedy Jr faces a pivotal Senate hearing Wednesday where he will be grilled on his history of promoting vaccine misinformation and plans to upend US science agencies as he bids to become President Donald Trump's health secretary.
If confirmed, the 71-year-old Kennedy family scion and former environmental lawyer would take the helm of a department overseeing more than 80,000 employees and a $1.7 trillion budget at a time when scientists are sounding the alarm over the potential for bird flu to trigger a human pandemic.
