A draft budget proposal circulating among federal officials would dramatically deepen cuts at the nation's top health agency, eliminating some public health programs entirely and serving as a roadmap for more mass firings.

The Trump administration is formulating plans to cut roughly a third of the federal health budget, eliminate dozens of programs and vastly whittle down health agencies, according to an internal document reviewed by CNN.

The HHS budget draft, known as a “passback,” offers the first full look at the health and social service priorities of President Donald Trump’s Office of Management and Budg