CBO Pegs Trump 'Golden Dome' Missile Defense Cost At $1.2 Trillion
On May 12, 2026, the Congressional Budget Office released a report estimating President Trump's "Golden Dome" missile defense concept would cost about $1.2 trillion over 20 years.[1]
The CBO said limited Defense Department detail on the planned architecture made precise long-term cost projections impossible.[1] That figure is far higher than the administration's earlier estimate of about $175 billion.[1]
President Trump ordered development of the system by executive order in his first week in office and has said he wants it fully operational by January 2029.[1] Congress has already approved roughly $24 billion for the program through a 2025 GOP tax and spending measure.[1]
The CBO estimate is likely to intensify congressional scrutiny over the program's design, cost and the Pentagon's technical plans as lawmakers decide whether to authorize further funding.
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📌 Key Facts
- On May 12, 2026, CBO released a report estimating the 'Golden Dome' missile defense concept would cost about $1.2 trillion over 20 years.
- President Trump ordered development of the system by executive order in his first week in office and has said he wants it fully operational by January 2029.
- Congress has already approved roughly $24 billion for the program through a 2025 GOP tax and spending measure.
- Trump previously described the program as costing $175 billion, a fraction of CBO’s new long‑term estimate.
- CBO said limited Defense Department detail on the planned architecture makes it impossible to project precise long‑term costs.
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