() Health Secretary Robert F. Kennedy Jr. will testify before a House subcommittee Tuesday regarding the Trump administration’s proposed budget.

Kennedy’s “Make America Healthy Again” movement has proved controversial. Supporters have praised his efforts to remove artificial dyes from food and his efforts to reinvestigate vaccines. But critics have raised the alarm about Kennedy’s rejection of decades of data on vaccine safety and other dubious medical advice he has given.

The proposed budget includes significant cuts to the National Institute of Health, including research, something experts have said would set back medical progress and harm public health.

The Centers for Disease Control and Prevention is also facing cuts, including the elimination of programs designed to fight HIV and tuberculosis and programs designed to promote vaccines in developing nations.

The Trump administration has also cut funds for public health departments around the country as the United States faces a growing measles epidemic driven in part by anti-vaccination sentiment.