US pushes $24.3B F-35 deal to Saudi—Democrats move to block Trump’s nuclear pact

On September 17, 2026, US House of Representatives Democrats introduced a resolution of disapproval aimed at blocking President Donald Trump’s civil nuclear agreement with Saudi Arabia from taking effect. The same day, the US Department of State cleared the way for a potential $24.3 billion sale of up to 48 F-35 Lightning II fighter jets and related F135 engines to Saudi Arabia, according to Reuters and Bloomberg. The State Department notification to Congress signals the transaction is advancing through the formal arms-transfer process, while Lockheed Martin and Pratt & Whitney are positioned as key industrial beneficiaries. In parallel, the US also moved to approve a separate transfer of 10 Patriot missiles to Ukraine from Germany for about $29.6 million, underscoring a broader pattern of US security support and export approvals. Strategically, the cluster links two sensitive tracks: nuclear cooperation and advanced conventional airpower. Democrats’ attempt to halt the nuclear deal suggests heightened scrutiny over proliferation risk, legislative control, and the political cost of deepening ties with Riyadh amid Middle East instability. Meanwhile, the F-35 package would deepen Saudi operational integration with US systems and sustain US leverage in Gulf security architecture, potentially increasing Saudi capacity to shape regional air and deterrence dynamics. The juxtaposition implies a domestic US political contest over how far to go with Saudi partnerships—where one side prioritizes strategic alignment and industrial scale, and the other prioritizes nonproliferation guardrails and oversight. The net effect is a higher likelihood of policy friction in Washington even as defense procurement and export pipelines continue to move. Market and economic implications are most visible in defense-industrial supply chains and defense-related risk premia. A $24.3 billion F-35-related sale supports revenue visibility for Lockheed Martin and its engine and subsystem ecosystem, with knock-on effects for suppliers tied to F135 production and sustainment; the immediate market read-through is bullish for select defense primes and their near-term backlog. The separate Patriot transfer to Ukraine, though smaller in dollar terms, reinforces demand for missile and air-defense manufacturing and sustainment, which can tighten supply for interceptors and related components. On the currency and macro side, large defense export approvals can marginally support US defense-sector employment expectations and capex planning, but the bigger financial signal is sector sentiment rather than broad macro impact. Instruments most likely to react include US defense equities and defense ETF baskets, where headlines can shift expectations for order flow, production ramping, and export licensing timelines. What to watch next is whether the congressional resolution of disapproval gains traction and whether the nuclear agreement’s implementation timeline is paused, modified, or ultimately overridden. For the F-35 sale, the key trigger is the completion of the notification-and-review window in Congress and any subsequent policy conditions attached by lawmakers or the executive branch. Separately, the AIM-260 production framework agreement between the Pentagon and Lockheed Martin points to continued US missile industrial expansion, so monitoring contract milestones and production-rate announcements will matter for medium-term defense supply dynamics. Finally, the broader pattern of US approvals—such as Patriot transfers—should be tracked alongside any shifts in Middle East escalation risk that could prompt lawmakers to revisit export approvals. Escalation would look like renewed congressional obstruction or additional proliferation-related hearings, while de-escalation would be visible if the nuclear deal proceeds with safeguards and the F-35 package clears without added conditions.

Geopolitical Implications

• 01

  Domestic US politics is directly shaping the trajectory of Saudi nuclear cooperation.

• 02

  Advanced US airpower exports to Riyadh can alter regional deterrence and escalation dynamics.

• 03

  The pairing of nuclear scrutiny with conventional arms momentum suggests calibrated leverage by Washington.

• 04

  Sustained US air-defense support (Patriot) signals continued prioritization of regional and European security needs.

Key Signals

• —Progress and outcome of the congressional resolution of disapproval.
• —Any added conditions or holds on the F-35 notification window.
• —AIM-260 production ramp milestones from the Pentagon and Lockheed.
• —Middle East escalation events that could trigger renewed export scrutiny.