Andy Burnham flew to New York this week for his first bilateral meeting with Donald Trump at the UN General Assembly, and by every measure his team was tracking, it went well. Trump deployed his standard first-meeting playbook — personal flattery, transactional framing, public evaluation — calling Burnham a "natural businessperson" with "lots of assets on his side" and predicting he would be a "great" leader. British officials described the outcome as the "top end of our expectations." The meeting's real success was measured in what didn't happen. The Falklands, a united Ireland, and the Chagos deal — all flashpoints British aides had feared — were either muted or deflected. Trump called the Chagos deal "terrible" but didn't escalate. On the most explosive issue — Starmer's refusal to allow US use of British airbases for strikes on Iran, which fully ruptured the previous PM's relationship with Washington — Trump held his punches, offering only oblique criticism: "Some countries could have stepped forward." The West Bank settlement trade ban was the one area that genuinely worried Downing Street. A summer of quiet diplomacy apparently brought Trump around, and he deferred to Burnham on the question — a result one aide called "a bit of a curveball" but "better than him criticising it." Burnham used the moment to pitch his broader narrative: ending a decade of British political turbulence and building a more "positive story" for the country. But the Starmer precedent is instructive and sobering. When Starmer first met Trump at the White House, the performance was nearly identical — praise for his "beautiful" accent, claims of a "hard bargain" on tariffs, thumbs-up on the flight home. Within months, the relationship collapsed under the weight of policy divergence on Iran. The flattery playbook is designed to create goodwill that can be drawn down later; it is not evidence of alignment. The structural problem for any British PM dealing with this White House is that the UK's foreign policy commitments — multilateral institutions, international law, the Chagos handover, restrictions on settlement trade — sit in direct tension with Trump's transactional unilateralism. Personal chemistry can defer those collisions but cannot resolve them. Burnham's team knows this. "More than anything, we just needed them to connect, and start building a relationship that we can leverage when we need to," one official said — a frank admission that the relationship is instrumental, not substantive. Burnham navigated the first set of rapids. The question is whether he can build enough relational capital before the next policy collision — Iran, trade tariffs, NATO burden-sharing — forces the kind of rupture that consumed his predecessor. The playbook is known. The rapids downstream are not.