Trump's Fiscal Year 2027 Budget Proposes Record $1.5 Trillion for Defense While Cutting Domestic Discretionary Programs by 10%

Details

On April 3, 2026, the White House Office of Management and Budget released President Trump's fiscal year 2027 budget request, proposing $1.5 trillion in total defense funding — the largest such request in U.S. history, even adjusted for inflation — paired with a $73 billion (10%) cut to non-defense discretionary spending. Former Treasury official Steven Rattner subsequently highlighted the proposal on MSNBC's Morning Joe on April 16, stating that "for the first time in recent history, the government would spend a larger share of its annual budget on defense than on domestic programs."

The president's budget is a statement of priorities that does not carry the force of law. Congress, which holds the constitutional power of the purse, is free to reject it and has historically done so with many Trump-proposed domestic cuts.

What the Budget Proposes

According to the Committee for a Responsible Federal Budget (CRFB), the $1.5 trillion defense topline consists of $1.154 trillion in discretionary appropriations plus $350 billion requested through budget reconciliation — a process that bypasses the Senate filibuster. The administration describes this as a 42–44% increase, but that figure compares against a baseline that includes $155 billion in reconciliation funds from the One Big Beautiful Bill Act. Against enacted FY 2026 base defense funding of $903 billion, the discretionary increase is 28% ($251 billion).

On the non-defense side, base discretionary funding would drop from $733 billion to $660 billion — a 10% cut. The budget then proposes a "two-penny plan" of 2% annual nondefense cuts through the rest of the decade, which CRFB estimates would reduce nondefense budget authority by $2.5 trillion over ten years compared to the CBO baseline.

Rattner's Claim in Context

Rattner's central argument is that the proposal would upend a decades-long informal parity between defense and non-defense discretionary spending. His chart team found that, tracking as a share of GDP, defense and non-defense discretionary spending moved closely in tandem from the early 1980s through the pandemic; the FY 2027 proposal would allocate roughly twice as many discretionary dollars to defense as to non-defense programs.

Independent analysis by the Center for Strategic and International Studies (CSIS) supports Rattner's framing: "The FY 2027 discretionary request for national defense is 63 percent of total discretionary spending, up from an average of 50 percent in the few years prior." As a percentage of overall federal budget authority (which includes mandatory spending like Social Security, Medicare, and Medicaid), defense would account for 18%.

The scale and historical context matter. According to CSIS, the $1.5 trillion defense topline would exceed the inflation-adjusted peak of World War II defense spending (approximately $1.2 trillion in outlays in FY 1945). The White House fact sheet itself states the request "exceeds even the Reagan buildup by approaching the historic increases just prior to World War II." Defense outlays as a share of GDP would rise from 3.0% in FY 2026 to 3.6% in FY 2027.

Congressional Research Service data shows that base defense discretionary budget authority has exceeded base nondefense discretionary budget authority in each of the past 10 fiscal years, but once adjustment categories and emergency funding are included, nondefense discretionary outlays have actually exceeded defense outlays every year since FY 2020. The proposed budget would reverse that and substantially widen the gap.

Specific Non-Defense Cuts

Rattner reported that several departments would fall to their lowest inflation-adjusted funding levels since at least 1976 — the first year in the OMB historical dataset. According to the Brownstein Hyatt Farber Schreck analysis and Federal News Network, agencies facing cuts of more than 20% include the Environmental Protection Agency, the Department of Labor, the Small Business Administration, and NASA. The Agriculture Department's headcount would fall to the lowest level on record.

The Center for American Progress found the proposal would bring nondefense discretionary spending as a share of GDP to its lowest level since at least the Eisenhower administration.

Major program-level changes include:

• Elimination of the $4 billion Low Income Home Energy Assistance Program, which helps low-income households pay heating and cooling bills
• Elimination of the $775 million Community Services Block Grant, which the Center for American Progress reports helps roughly 10 million people annually
• $5 billion cut to the National Institutes of Health
• 54% cut to the National Science Foundation
• $768 million cut to refugee resettlement and $819 million cut to the Unaccompanied Alien Children program
• Reduction of the WIC fruit and vegetable benefit for breastfeeding mothers from $52 to $13 per month, according to page 164 of the budget document cited by Rep. Morgan McGarvey (D-KY)

The budget also includes some increases: $481 million for air traffic controller hiring and aviation safety, $605 million for National Guard mobilizations in Washington, D.C., and additional Justice Department funds for drug and immigration enforcement.

Defense Priorities

The $1.5 trillion defense request funds a 5–7% pay raise for troops, $65.8 billion for shipbuilding (including initial funding for a planned "Trump-class battleship" and the administration's "Golden Fleet"), replenishment of munitions stocks depleted in the war with Iran, and continued construction of the "Golden Dome" space-based missile defense system. CNN reports the administration wants to pass $350 billion of the increase through reconciliation — requiring only Republican votes — while $1.1 trillion would go through the normal appropriations process requiring 60 Senate votes.

The Trump administration separately plans to request a supplemental appropriation for the ongoing war with Iran, reportedly in the range of $80 billion to $100 billion, which is not included in the budget topline.

The Case for the Buildup

Not every outside analyst views the request critically. Matthew Kroenig — a tenured professor of government and foreign service at Georgetown University and vice president and senior director of the Atlantic Council's Scowcroft Center for Strategy and Security — argued in a July 14, 2026 Foreign Policy column that the $1.5 trillion request is "vitally necessary." Kroenig described the proposal as "the biggest surge in U.S. defense spending since the Korean War" — nearly double the country's 2022 defense budget and, by his accounting, more than the next 18 nations combined — and contended that the scale is warranted by what he called "a perilous moment" for U.S. security. Consistent with his long-standing writing on great-power competition, his central claim is that the United States now faces simultaneous pressure from China, Russia, and Iran, and that the risks of underinvesting in deterrence outweigh the fiscal costs the budget's critics emphasize.

Kroenig writes from an established but distinctly hawkish, primacy-oriented perspective; a 2019 study in Perspectives on Politics named him one of the 25 most-cited political scientists of his generation, while his earlier advocacy for military strikes on Iran's nuclear program and his academic claims about the crisis-bargaining benefits of nuclear superiority have both drawn substantial criticism from other scholars. His column represents the affirmative case for the budget rather than a neutral assessment, and is included here to balance the critical analyses cited elsewhere in this entry.

Fiscal and Economic Assumptions

The White House claims the budget would reduce debt held by the public from 100% of GDP in FY 2025 to 94% by FY 2036. CRFB's analysis found this projection rests on economic assumptions that diverge sharply from mainstream forecasters:

• Administration: 3.0% average real GDP growth over the decade
• Congressional Budget Office: 1.8% average growth
• Federal Reserve: 2.0% long-run growth estimate
• Q1 2026 estimate: 1.3% annualized growth

Using CBO's growth projections instead, CRFB estimates debt would rise to 124% of GDP by 2036 rather than falling to 94%. The budget also assumes continued tariff revenue at pre-Supreme Court levels, despite the Court's ruling that tariffs imposed under the International Emergency Economic Powers Act are illegal — which CRFB estimated would reduce revenue by $1.7 trillion through 2036.

The national debt currently stands near $39 trillion, and CBO has concluded the One Big Beautiful Bill Act enacted in July 2025 adds more to the deficit than any single piece of legislation in American history.

Congressional Response

OMB Director Russell Vought defended the budget before the House Budget Committee on April 15 and the Senate Budget Committee on April 16. The hearings grew contentious, with protesters ejected before Vought could finish his opening statement.

Republican support: House and Senate Armed Services chairmen Rep. Mike Rogers (R-AL) and Sen. Roger Wicker (R-MS) applauded the defense increase, citing threats from China, Russia, and Iran, saying: "America is facing the most dangerous global environment since World War II."

Republican dissent: Senate Appropriations Chair Susan Collins (R-ME) wrote in a statement that while there are "some improvements over last year's domestic discretionary budget request, the request has several shortcomings." Collins has repeatedly emphasized that Congress holds the constitutional "power of the purse."

Democratic opposition: House Budget Committee Ranking Member Rep. Brendan Boyle (D-PA) called it an "America Last" budget. Rep. Pramila Jayapal (D-WA) noted that the Department of Defense has failed eight consecutive audits and remains the only federal agency never to pass one, asking: "There is over $10 billion in confirmed fraud within the Department of Defense, but you're not going after any of that." Rep. Becca Balint (D-VT) argued: "We've never in the history of this country seen spending like this, paid for by slashing health care, education and housing."

President Trump publicly justified the priorities at a White House Easter lunch earlier in the week, saying: "We're fighting wars. We can't take care of day care. It's not possible for us to take care of day care, Medicaid, Medicare — all these individual things." He argued states should take over those responsibilities and raise their own taxes to fund them.

Path Forward

The $251 billion discretionary defense increase would require 60 votes in the Senate, necessitating Democratic support. The $350 billion in reconciliation funding requires only a simple GOP majority but faces internal Republican divisions between fiscal hawks seeking to reduce deficits and members who want to add Immigration and Customs Enforcement funding to the reconciliation package, per CSIS analysis.

Historical precedent suggests most of the proposed cuts will not pass. In the FY 2026 cycle, Rattner previously reported, Congress rejected almost all of Trump's $163 billion in requested discretionary cuts and kept spending essentially unchanged at roughly $1.6 trillion. The FY 2027 fiscal year begins October 1, 2026, with midterm elections in November potentially delaying final appropriations.

July 2026 Update: The Reconciliation Push and a Stalled Defense Bill

By mid-July 2026, the $350 billion reconciliation slice had moved from a line in the budget document to an active legislative fight. On July 14, 2026, Speaker Mike Johnson defended the request by saying the money was needed because "we're fighting communism on our own shores, and we're fighting evil terrorists and tyrants around the world," describing the objective as effectively doubling national defense funding. Johnson had used the "communism on our own shores" framing repeatedly since democratic-socialist-backed candidates won primaries in New York, pointing to New York City Mayor Zohran Mamdani as the movement's figurehead. Critics noted the phrase echoed President Trump's "enemies within" rhetoric and warned that, because much of the request is classified, it was impossible to rule out that some funding could support domestic military operations — deployments courts have previously found unlawful.

Defense Secretary Pete Hegseth made the administration's case in classified briefings to House Republicans but left the caucus divided rather than unified, with members such as Rep. Keith Self (R-TX) demanding to "see the package first, and the pay-fors" and others objecting to pairing the increase with safety-net cuts. Layered on top of the roughly $1.15 trillion annual defense bill and the separate $87.6 billion Iran war supplemental, the request would push the defense topline toward roughly $1.4 trillion.

The reconciliation push advanced against the backdrop of a stalled traditional defense bill. On July 14, 2026, Senate Democrats blocked the annual National Defense Authorization Act on a 50–46 procedural vote, protesting the administration's Iran military operations conducted without congressional authorization. Senate Minority Leader Chuck Schumer said "the NDAA cannot become a permission slip for that recklessness that we see occurring in Iran" and that "Donald Trump does not get to drag the American people deeper into a war he cannot explain and does not know how to end." Sen. Richard Blumenthal (D-CT) called the vote "a referendum on the Iran war," while Senate Majority Leader John Thune criticized Democrats for letting "politics of obstruction" drive their votes.