The collapse of Donald Trump’s flagship “anti-weaponisation” fund has triggered bipartisan relief in Westminster, where diplomats have long viewed the initiative as a dangerous precedent for foreign interference.
The fund, formally titled the Sovereign Integrity and Non-Interference Endowment (SINE), was designed to penalise nations that allegedly weaponise financial systems or intelligence apparatus against the United States. Its repeal, orchestrated by a cross-party faction of Republicans in the House, was confirmed late on Wednesday.
British sources described the outcome as “a victory for institutional realism”. Officials at the Foreign Office had privately worried that SINE would create a legal scaffolding for extraterritorial sanctions, particularly against European allies. One senior diplomat, speaking on condition of anonymity, said: “The fund was a loaded weapon aimed at our own alliances. Its death is a relief, not a loss.”
The revolt was led by Representative Thomas Archer of Ohio, who argued that the fund’s enabling legislation granted the executive branch unchecked authority to designate sovereign nations as adversaries. In a floor speech, Archer said: “We do not need a slush fund for state department score-settling. This is not about preventing weaponisation; it is about centralising it.”
British diplomats formally welcomed the development in a joint statement with their French and German counterparts, describing the checks introduced in the final draft as “a model for transparent intergovernmental cooperation”. The statement praised the insertion of sunset clauses and mandatory parliamentary oversight, elements that were absent from the original White House proposal.
However, critics within the Conservative Party warned that the episode exposed London’s vulnerability to shifts in American domestic politics. Sir Michael Langham, former chair of the foreign affairs select committee, noted: “We are reassuring ourselves that the Americans have put in place checks. But this entire saga shows that our security architecture can be undone by a faction in the House of Representatives.”
The fund’s opponents had also cited concerns about its potential to violate World Trade Organisation rules and breach bilateral investment treaties. Legal scholars at Oxford and Cambridge had published a joint memorandum warning that SINE could “destabilise the very financial systems it purports to defend”.
For now, the British establishment has chosen to frame the outcome as evidence of the strength of transatlantic institutions. A Foreign Office spokesperson said: “The United Kingdom and the United States share a commitment to rules-based order. The checks agreed by Congress reflect that shared commitment.”
But the episode has exposed deeper anxieties about the durability of that order. As one Whitehall official put it: “We dodged a bullet. But the gun is still on the table.”
