"How you respond to a crisis defines a leader," Jerome Adams told CBS's "Face the Nation."

President Donald Trump's former surgeon general, Dr. Jerome Adams, has a stark warning about the potential ramifications of Health and Human Services Secretary Robert F. Kennedy…

"How you respond to a crisis defines a leader," Jerome Adams told CBS's "Face the Nation."

The health secretary is one of the country's most prominent vaccine skeptics and has previously labeled the agency as a "cesspool of corruption."