White House opposes congressional guardrails on Trump-class battleship program

The White House has formally registered its opposition to a congressional move that would block work on the nuclear-powered Trump-class battleship unless the U.S. Navy provides assurances that key weapon systems are "sufficiently mature." The House Armed Services Committee has already demanded a report from the Secretary of the Navy outlining steps being taken to ensure the battleship program does not worsen existing construction delays on aircraft carriers and submarines.

Administration Policy Statement

Earlier this week, the White House's Office of Management and Budget (OMB) issued a Statement of Administration Policy regarding the latest draft of the annual defense policy bill—the National Defense Authorization Act (NDAA) for Fiscal Year 2027, also known as H.R. 8800—now making its way through the House of Representatives. The document expresses support for and opposition to various sections of the proposed legislation.

"The Administration appreciates that H.R. 8800 would provide authorization of the 18 ships requested in the Budget. These ships are a direct commitment to restoring America's maritime dominance and maritime industrial base," OMB's statement, published on July 21, declares. "In addition, the Administration appreciates the bill's support of the Battleship program by fully authorizing the $1 billion in advance procurement necessary to accelerate the delivery to the Fleet."

"However, the Administration opposes the bill's excessive reporting requirements in section 131 regarding the Administration's priority Battleship program," it continues. "The Administration strongly opposes any reporting requirements that delay the Battleship program without supporting national security requirements."

Funding Push

On July 21, USNI News also reported that OMB was pressing members of Congress to include funding to begin work on the first Trump-class battleship in a proposed temporary spending bill, or Continuing Resolution. A temporary funding package could be necessary if legislators cannot pass a more formal budget by September 30, when the current fiscal year ends.

Section 131: Key Provision

When it comes to Section 131 of H.R. 8800, the provision is brief but pointed. At the time of writing, it reads in full:

"The Secretary of the Navy may not enter into a contract or other agreement that includes a scope of work for the construction of the lead ship of the Battleship program until the date on which the Secretary certifies to the congressional defense committees that the weapon systems planned for inclusion in such lead ship are at a sufficiently mature technology readiness level."

The section does not name any particular weapon systems or define what level of technological readiness would be deemed sufficient.

Trump-Class Battleship Specifications

To date, the Navy has described the planned Trump-class battleship as a 35,000-ton-displacement warship with a diverse array of weapons, including:

• Nuclear and conventional missiles, including hypersonic types, from several very large Vertical Launch System (VLS) arrays
• An electromagnetic railgun
• A pair of traditional 5-inch naval guns
• Various laser directed energy weapons
• Additional weapon systems for close-in defense

Note: An annotated graphic from the Navy mentions "28 Mk 41 VLS" cells, which appears to be a typo. Other official information from the U.S. Navy states the ships will have 128 such cells.

Railgun Technology Concerns

TWZ previously reported on this provision, which has been in the proposed legislation since at least May. In terms of technological maturity, the railgun presents particular questions:

• Between 2005 and 2021, the Navy had an active railgun program
• Despite promising developments, plans for an at-sea test were repeatedly pushed back before the entire effort was shelved
• Major technical hurdles were cited as a key factor in that decision
• The railgun was effectively placed in storage at White Sands Missile Range (WSMR) in New Mexico

However, it emerged earlier this year that the Navy conducted a new round of railgun testing at WSMR in February 2025. Whether the Navy plans to resume work with the existing BAE Systems prototype design or pursue a new one remains unclear. General Atomics, which previously supported U.S. Army railgun efforts, has publicly expressed interest in being involved.