Official projections and administrative estimates are not experiments. Mechanism reviews are evidence references, not numeric scores.
Outcome findings
O01
CBO: enacted 2025 reconciliation law raises deficits about $3.4T over 2025–2034 before debt service and macro effects; revenue falls ~$4.5T and spending ~$1.1T.
Does not establish: Does not prove every provision is undesirable or that growth cannot close any gap.
O02
Debt service adds about $718B, giving ~$4.1T inclusive of interest under that framing.
Does not establish: Do not add interest again to an already inclusive total. A later CBO 2026 outlook figure of $4.2T including interest and macro feedback is a separate baseline—not additive to O01/O02.
O03
CBO Medicaid chapter: reduces the deficit by $886.8B; uninsured up 7.5 million in 2034.
Does not establish: Chapter figure is not the whole law’s total deficit effect.
O04
SSA 2026 trustees: OASI depletion late 2032 (78% of scheduled benefits payable); hypothetical combined OASDI 2034 (83%).
Does not establish: Not Social Security disappearing; not automatic fund merger.
O05
Medicare HI depletion 2033, with 89% of benefits payable thereafter under current law projections.
Does not establish: Not all Medicare insolvent at once.
O06
GAO: $186B FY2025 improper payments across 64 programs and 15 agencies (~$153B overpayments).
Does not establish: Not every improper payment is fraud or recoverable savings.
Selected mechanism reviews
M01 · New housing supply
Nearby rents about 6% lower in reviewed evidence (setting-specific).
M02 · Rent control
Supply reductions and citywide rent pressure documented in reviewed studies.
M03 · Medicaid (Oregon experiment)
Less financial strain and depression; limited physical-health effects at 1–2 years.
M04 · Single payer (CBO illustrative)
Large federal subsidy shifts; national spending change depends on design.
M05 · Work requirements (Arkansas 2018)
Coverage losses without employment gains in the reviewed episode.
M06 · Wage floors and tariffs
Wage-floor employment effects debated; importers bore nearly full tariff cost in reviewed USITC work.
M07 · Infrastructure needs
EPA: $629.1B drinking-water needs over 2021–2040.
M08 · Electricity queues
2,060+ GW in interconnection queues; queued is not operating.
M09 · Drug negotiation baseline
Existing authority is bounded; not unrestricted price-setting.
M10 · Child access prevention
Associated with fewer juvenile firearm homicides in reviewed working paper.
M11 · Immigration status and arrests
Texas 2012–2018 evidence: lower felony arrest rates for undocumented immigrants; arrests ≠ convictions.
M12 · Sustained school spending
Long-run associations with education years, wages, and adult poverty in reviewed work.
M13 · DC vouchers
No math/reading effect after three years; satisfaction and perceived safety rose.
M14 · Hospital mergers
Documented price increases in cross-market / within-state settings.
M15 · Tax cuts and employment
Employment links concentrated in lower-income cuts; top-tenth effects small in reviewed evidence.