Tax breaks tallying more than $5 trillion. But also sizable reductions in Medicaid health care, food stamps for older Americans and green energy strategies to fight climate change.

New tax cuts. Massive spending on border security. Cuts to social safety net programs. Pullbacks on investments to fight climate change. New limits on student loans. If it becomes law, President Donald Trump and congressional Republicans’ massive bill will reshape much of the federal government — and the U.