House Passes $1.15T Defense Bill, Senate Lags Behind

Why it Matters

Congress faces a defining choice on defense spending as the Trump Administration pushes for a historic expansion of military funding. A new CRS report, published July 24, reveals that out of the $1.15 trillion requested by the Trump administration, $1.14 trillion is in the charge of the House and the Senate Armed Services Committees. The House has already decided how to allocate the funds for FY2027: The proposed National Defense Authorization Act for 2027, which passed the House on July 22, would authorize more than $1 trillion in discretionary defense funding, representing a significant escalation that hinges on whether lawmakers are willing to approve not just record peacetime military budgets, but also an additional $350 billion in mandatory spending through a separate reconciliation bill.

The Big Picture

The second Trump administration requested approximately $1.15 trillion in discretionary defense funding for fiscal year 2027, a request that falls almost entirely within the jurisdiction of the House and Senate Armed Services Committees. Both chambers have responded with competing bills that track closely to the administration's ask, though with notable differences in how they allocate funds across military operations.

The House Armed Services Committee reported H.R. 8800, which would authorize $1.14 trillion in defense spending. The Senate Armed Services Committee congruently reported S. 4784, which also authorized $1.14 trillion in discretionary defense funding. Both bills exceed the President's request in targeted areas. H.R. 8800 would authorize $1.2 billion more than requested for procurement and $0.7 billion more for research, development, test, and evaluation, while S. 4784 proposes $0.4 billion less for procurement but $1.1 billion more for research and development.

A more striking divergence emerges on military construction. HR880 reserved $28.6 billion for military construction. S. 4784, by contrast, would authorize $50 billion for the same account, nearly double the administration's request.

FY2026 enacted defense funding totaled $890.6 billion. The proposed FY2027 NDAA funding totals approximately $250 billion, or 28 percent more than amounts authorized for FY2026. Procurement funding alone would grow from $161.7 billion in FY2026 to $257.1 billion in the President's FY2027 request. Research and development would rise from $145.7 billion to $218.8 billion; funding for operations and maintenance would increase from $291.5 billion to $338.6 billion; and funding for military personnel would climb from $193.2 billion to $205.1 billion.

The administration's budget strategy extends beyond what Congress can authorize in the National Defense Authorization Act. The President's budget assumed an additional $350 billion in mandatory defense funding would be enacted through a separate reconciliation act, a legislative vehicle that allows certain spending measures to bypass normal Senate procedural requirements. This dual-track approach effectively proposes total new defense spending well above $1.5 trillion for the fiscal year.

During House Armed Services Committee consideration, Representative Seth Moulton offered an amendment to reduce total authorizations by $150 billion. The committee did not adopt the amendment, however, indicating broad support among both parties for the higher spending levels.

Political Stakes

The defense authorization bills present different political calculations for each chamber. The House has moved first with its measure, and the administration weighed in with a statement of administration policy on H.R. 8800 on July 21. No such statement has been issued for S. 4784 as of the CRS report's publication and the bill stalled on the floor, leaving the Senate's approach ambiguous relative to the White House's stated preferences.

The disagreement between the House and Senate on military construction spending will need resolution in conference, potentially revealing different priorities within the GOP on where defense dollars should flow.

The Bottom Line

Congress has not yet enacted the FY2027 NDAA as of the report's publication on July 24, 2026, but the trajectory is clear: defense authorization levels will exceed $1.14 trillion, with the administration pushing for an additional $350 billion in mandatory spending. The House and Senate have largely aligned on the top-line figure while disagreeing on specific allocations, most notably on military construction.

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