Health and Human Services Secretary Robert F. Kennedy will testify Tuesday on his agency’s budget request before a House panel, where he may also face questioning about changes to U.S. vaccine policy and his replacement of a panel of vaccine experts who make key recommendations.

The hearing is expected to begin at 10 a.m. EDT. Watch live in the player above.

On Monday, Kennedy and Medicaid and Medicare Administrator Dr. Mehmet Oz announced that insurance companies would be voluntarily scaling back their use of prior authorizations.

This story is developing and will be updated.