A bipartisan group of 10 US senators has urged the Trump administration to immediately disburse appropriated security funding for the Baltic states — Estonia, Latvia, and Lithuania — and demanded a progress update no later than 19 November 2026. The appeal targets money already approved by Congress under the Baltic Security Initiative (BSI) for fiscal year 2026, with the senators arguing that delays are untenable given what they described as escalating Russian aggression on NATO's eastern flank.

Who Signed the Letter

The appeal was led by Democratic Senator Dick Durbin and Republican Senator Chuck Grassley, underscoring rare cross-party alignment on the issue. They were joined by Senators Tammy Duckworth, Thom Tillis, Richard Blumenthal, John Cornyn, Jacky Rosen, Mark Kelly, Michael Bennet, and Ruben Gallego. The letter was addressed to Defence Secretary Pete Hegseth and Secretary of State Marco Rubio.

What the Senators Are Demanding

Critically, the letter does not call for new funding — it presses the executive branch to complete the procedural steps needed to commit and deliver money Congress has already appropriated. The distinction between appropriation, obligation, and disbursement is central to the request: lawmakers have authorised the funds, but the senators say the administration has been slow to obligate and deliver them. The letter sets a firm deadline: 'disbursement by the end of the calendar year,' with a written update on those plans by 19 November 2026. The letter does not specify the total amount awaiting disbursement.

Why Now: Russian Threats Cited

The senators cited a deteriorating security environment along NATO's eastern perimeter as the driving justification. According to their assessment, recent developments include airspace incursions, grey-zone tactics — activities deliberately kept below the threshold of open warfare — and what they described as heightened nuclear warnings directed at the Baltic states. 'In light of recent airspace incursions, gray-zone tactics, and heightened nuclear warnings against the Baltics, accelerating the delivery of assistance under the BSI must be a priority,' they wrote. These characterisations reflect the senators' own assessment, not independently verified intelligence findings.

Where the Process Stands

The senators acknowledged that some administrative progress has been made. The Defence Department submitted a spending plan on 29 May 2026 covering integrated defence, maritime security, irregular warfare, and other capabilities mandated by the BSI's governing legislation. A second update on 15 September 2026 indicated that the initiative had been prioritised for notification and was in the final stages of inter-agency coordination, including with the State Department. 'While this is important progress, escalating Russian threats, specifically against the Baltic States, demand more urgent U.S. security assistance,' the senators wrote.

Background and Broader Context

This is not the senators' first intervention. An earlier appeal in May 2026 similarly urged the administration to release what were then described as stalled BSI funds. Senator Durbin also raised the issue directly with Defence Secretary Hegseth and Joint Chiefs of Staff Chairman General Dan Caine during a congressional appropriations hearing earlier this year. The BSI was designed to bolster the defence capabilities and interoperability of Estonia, Latvia, and Lithuania — three NATO members that share borders with Russia and Belarus. This pattern of congressional pressure reflects a broader tension between the Trump administration's approach to European security commitments and the preferences of a significant bloc of senators on both sides of the aisle. Neither Hegseth nor Rubio had publicly responded to the letter at the time of writing. Whether the administration acts before the year-end deadline will be a key test of its stated commitment to Baltic allies.