USA TODAY: Senate confirms Robert F. Kennedy Jr. as Secretary of Health and Human Services.

Cassidy ultimately voted to confirm Kennedy but has targeted the political heir’s tenure leading the Department of Health and Human Services.

On “State of the Union,” Cassidy told Bash that it has been scientifically proven that vaccines don’t cause autism over decades. “The fact that that is still there is almost an insult to the American people,” Cassidy said. “We don’t care enough about you to tell the truth. We want to continue to promote that which has been proven false, but we don’t want to admit it, whoever we is.”

Many public health groups and physicians across the country have also denounced language on the CDC website about vaccines and autism spectrum disorder, despite decades of evidence showing approved immunizations are safe.