How much government spending will Trump cut before his term ends?

**Stage 1 — Blind analysis (ignore market prices):**

Assumptions and measurement convention I use: the event is interpreted as a nominal decrease of at least $250 billion in *total federal outlays* (all-government spending as reported by OMB/CBO: mandatory + discretionary + net interest), comparing a reported annual total for a later date to an earlier baseline, occurring any time before the end of calendar year 2027. I treat the threshold literally as a one-time nominal drop (not a reduction in projected growth or multi-year cumulative savings).

Historical behavior and institutional constraints matter: nominal federal outlays are rarely lower year-over-year because mandatory programs (Social Security, Medicare, Medicaid), rising interest costs, and the political difficulty of large entitlement reductions push totals up over time. Cutting $250 billion is a non-trivial amount (on the order of a few percent of total outlays). Achieving it in nominal terms typically requires either: (a) a concentrated set of large discretionary and/or mandatory cuts passed and implemented quickly (e.g., reconciliation-style legislation plus appropriations/agency implementation), (b) a significant fall in net interest expense caused by sharply lower interest rates, or (c) offsetting accounting moves/reclassifications or one-time transfers being rescinded.

Arguments that make the outcome plausible: - A unified executive-congressional effort with reconciliation could target discretionary caps and some mandatory programs and declare large savings; budget reconciliation can bypass the filibuster if the Senate majority exists. - A politically driven push by the White House toward headline reductions could lead to rescissions of balances, suspensions of some programs, or the end/rollback of expensive temporary programs enacted in prior years, producing a visible nominal decline. - A rapid, sustained decline in Treasury yields (e.g., big Fed easing following a growth shock) could materially reduce net interest payments and, depending on timing, shave several tens of billions off annual outlays; if combined with modest program cuts, this could sum to ~$250B.

Arguments that make the outcome unlikely: - Entitlement spending is structurally rigid; major overhauls usually take longer than 18 months and face strong political opposition and litigation risk. Many savings from entitlement reform are phased in over multiple years, not immediate nominal cuts. - Emergency and contingency spending (disaster response, defense contingencies, border operations, COVID/health-related reserves) often add to outlays during crises; these can offset planned cuts. - Even historically aggressive austerity episodes in the U.S. tended to reduce the projected growth of spending rather than produce large nominal year-to-year declines. Administrative delays and implementation lags mean enacted savings often show up as lower future growth, not immediate nominal decreases.

Quantitative sense check: a $250B nominal reduction equals several percentage points of annual outlays. It is large enough that it usually requires either a major policy shift or a sizable interest-rate move, both of which are possible but not routine. Given political fragmentation, vested interests, and the inertia of mandatory programs, I judge the chance materially greater than near-zero but well below even odds.

Combining these considerations I assign a **20% independent probability** to the event.

**Stage 2 — Market calibration (compare to current market price Yes = 15%):**

The market currently prices Yes at 15%. My independent 20% is slightly higher. Possible reasons the market is lower:

- Traders may be anchoring to the historical norm that nominal spending nearly always rises, hence treating any nominal decrease as a near-impossibility. - The market could be reflecting uncertainty about measurement/definition of “government spending” (some players may think only discretionary or only federal vs. state), and that ambiguity biases prices toward No because traders favor the status quo interpretation. - Liquidity and order flow: with substantial volume already, contrarian views may be expensive to express, and market makers may widen spreads or skew prices conservatively.

Why my view is above the market price: I give extra weight to procedural pathways (reconciliation, appropriation rescissions, executive rescissions, and the potential for quick changes in net interest expense) that could plausibly produce a nominal drop inside the timeframe. Those pathways are low-probability but high-impact; markets often underweight low-prob/high-impact institutional events. The 5-percentage-point gap (20% vs 15%) reflects my judgment that traders underprice the real but hard-to-model chance that a combination of policy maneuvers and macro tail events will produce the required $250B nominal decline.

If you prefer a conservative stance, adopt the market price; if you favor identifying institutional tail risks and fast-policy moves, the independent probability of 20% better captures that possibility.