On December 7, 2018, President Trump signed Determination 2018-28364, invoking his authority under the Jerusalem Embassy Act of 1995 to suspend statutory limitations that had previously restricted the use of federal funds for U.S. embassy operations in Jerusalem. The determination was a formal mechanism that allowed the State Department to bypass specific congressional restrictions embedded in the 1995 legislation, which had conditioned embassy funding on certain conditions regarding Jerusalem's status. By suspending these limitations rather than formally repealing them, the administration retained executive flexibility while operationalizing the embassy relocation that had been initiated earlier that year.

The direct beneficiary of this action was the State Department, which gained unrestricted access to appropriated funds for establishing and maintaining embassy operations in Jerusalem. However, the practical effects extended far beyond administrative convenience. The determination formalized U.S. recognition of Jerusalem as Israel's capital and signaled a fundamental shift in American Middle East policy by removing a key statutory obstacle to full diplomatic normalization of that position. This action affected American diplomatic personnel stationed in Jerusalem, the substance of U.S. engagement with Palestinian and Arab state actors who viewed the move as prejudicial to peace negotiations, and the geopolitical calculus of regional allies dependent on American mediation.

The suspension represented a marked escalation in Trump administration unilateralism regarding Middle Eastern security and alliance structures. This determination foreshadowed the pattern evident in related 2026 actions, including the fast-tracked $8.6 billion arms deals to Israel and Gulf partners and the deployment of additional military assets to enforce Iran containment. Each action demonstrated the administration's willingness to use executive authority to restructure regional relationships without meaningful consultation with Congress or diplomatic partners. The Jerusalem embassy action was foundational—it eliminated a symbolic and legal constraint on American positioning in the region, enabling the more aggressive military and commercial postures that followed.

No major legal challenges successfully blocked implementation of the determination, though international bodies and numerous countries formally objected to the policy shift. Congressional response was limited, reflecting divided American opinion on the Jerusalem question and Israel policy generally. Reversal would require either a future presidential determination restoring the original statutory limitations or new legislation reimposing restrictions on embassy funding.