A former senior U.S. diplomat to China has warned that bilateral relations are entering a "wary new phase" characterized by deep structural mistrust, even as leaders meet and sign tactical agreements on trade and fentanyl cooperation.
"We really do not trust each other," the former envoy told the South China Morning Post, speaking on condition of partial anonymity given the sensitivity of ongoing diplomatic efforts. The assessment, from a veteran of multiple U.S.-China negotiations, underscores why even positive summit outcomes produce fragile results vulnerable to rapid deterioration.
The comments came shortly after President Trump's visit to Beijing for meetings with President Xi Jinping, where both sides announced agreements on technology export controls, agricultural purchases, and counter-narcotics cooperation. Yet the former envoy cautioned that such agreements mask fundamental divergences in how Washington and Beijing view sovereignty, security, and the international order.
In China, as across Asia, long-term strategic thinking guides policy—what appears reactive is often planned. From Beijing's perspective, the current U.S. approach reflects not just policy differences but an effort to contain China's rise through technology restrictions, alliance-building, and support for Taiwan. China's defensive measures—military modernization, economic decoupling, and partnerships with Russia and Iran—are viewed domestically as necessary responses to American encirclement.
From Washington's perspective, China's actions—territorial expansion in the South China Sea, pressure on Taiwan, technology theft, and authoritarian governance—represent challenges to rules-based order that require firm pushback. The divergent narratives create what the former envoy described as a "dialogue of the deaf," where both sides speak but neither fully comprehends the other's core concerns.
The structural mistrust manifests in daily friction. Trade agreements are negotiated with extensive verification mechanisms because both sides assume the other will exploit loopholes. Military communications channels exist but are rarely used effectively because neither side trusts the other's intentions. Scientific and educational exchanges have contracted because both governments suspect the other of espionage or malign influence.
The former envoy pointed to recent events as evidence of the fragility. Trump's discussion of the Taiwan arms sale pause with Xi—using it as a "negotiating chip" despite the Six Assurances commitment—erodes Taiwan's confidence in U.S. reliability. Yet from Beijing's perspective, even that gesture is insufficient because the U.S. maintains robust unofficial ties with Taipei and continues "provocative" freedom of navigation operations near China's coast.
Economic interdependence, once viewed as a stabilizing force, now amplifies mistrust. China depends on U.S. semiconductor technology and agricultural imports, creating vulnerabilities that Beijing seeks to reduce through indigenous innovation and supply chain diversification. The United States depends on China for rare earth minerals, pharmaceutical precursors, and manufactured goods, creating parallel vulnerabilities that fuel calls for "decoupling" or "de-risking."
The former envoy noted that middle-level working relationships—where trust is built through repeated interactions—have atrophied. During previous periods of tension, experienced diplomats and officials on both sides maintained channels and understood counterparts' constraints. Many of those relationships have been severed through personnel turnover, political pressure, or mutual suspicion, leaving fewer people capable of managing crises when they arise.
The "wary new phase" differs from outright Cold War hostility because economic ties remain substantial and military conflict is viewed by both sides as catastrophic. Yet it also differs from the "engagement" era because neither government believes the other will fundamentally accommodate its interests. The result is what the envoy called "managed competition with high risks of mismanagement."
For allies and partners, the structural mistrust creates dilemmas. Japan, Australia, and European nations must navigate between their security dependence on Washington and economic ties with Beijing, often finding that tactical agreements with one capital create friction with the other. ASEAN nations face similar pressures, unable to fully align with either power without jeopardizing vital interests.
The former envoy's warning suggests that observers should temper expectations from summit diplomacy. Agreements will be reached, communiqués will be issued, and both sides will declare progress. But without addressing the underlying mistrust—rooted in divergent political systems, security perceptions, and historical narratives—the relationship will remain vulnerable to rapid deterioration triggered by Taiwan contingencies, technology disputes, or third-party conflicts.
