Health and Human Services Secretary Robert Kennedy Jr. appeared on Capitol Hill, where he called the ousted director of the Centers for Disease Control and Prevention a liar.

The health agency has been in turmoil after former Director Susan Monarez was removed after just weeks on the job, as she pushed back against Kennedy, a known vaccine skeptic, over vaccines.

After she was pushed out, at least four other leaders at the CDC quit in protest, with some publicly sounding the alarms that the secretary was not following the science.

Ranking Member Ron Wyden brought up the chaos at the CDC during his questioning of Kennedy.

He read from an op-ed by the former CDC director, published on Thursday morning in The Wall Street Journal. In it, she wrote she was fired after just 29 days on th

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