Agriculture: The proposal includes $12 billion over 10 years to help feed schoolchildren from low-income families during the summer. Benefits would be loaded onto a debit card that can only be used for food at grocery stores.
Defense: The Pentagon's slice is about $582.7 billion, about a 1 percent increase over the $580.3 billion budget for fiscal 2016 at a time when the military is balancing operations in Iraq, Syria and Afghanistan and aggressive actions by Russia and China. The boost includes $58.8 billion in overseas contingency funding, which goes toward operations like the fight against the Islamic State in Iraq and the Levant.
Education: The budget calls for $4 billion over three years to expand computer science from kindergarten through high school and to boost access and help train teachers.
Energy: As part of a pledge following the 2015 Paris climate summit to double spending on clean energy research and development by 2021, the budget would spend $7.7 billion governmentwide for a range of clean energy investments, including $5.8 billion in the Energy Department. The figure is a 20 percent increase over current spending.
Health and Human Services: Responding to an epidemic of heroin addiction and abuse of prescription painkillers, the budget would provide $1 billion in new funding over two years for states to help more people complete treatment.
Homeland Security: As much as an extra $23 million for Customs and Border Protection would be provided if the number of unaccompanied immigrant children caught crossing the border illegally exceeds the total number of children apprehended during the 2016 budget year.
Interior: The budget would double — to $900 million — spending for the Land and Water Conservation Fund, which allows governments at all levels to buy land for parks and recreation and protect public lands, historic sites and battlefields.
NASA: A 17 percent cut in spending on human exploration, from $4 billion to $3.3 billion, is in the proposal. The budget includes $100 million in a proposed new program to reduce heat-trapping carbon dioxide emissions from airplanes.
State: More than $4 billion in the proposal would be used to stabilize communities liberated from extremists and to counter ISIL terrorist plots, financing and recruiting.
Transportation: The plan calls for $10 billion a year for new transit projects and $7 billion a year for high-speed rail projects.
Veterans: The budget would increase spending on medical care for veterans by 6.3 percent, a hike of $65 billion.