On June 4, 2026, the House of Representatives passed a resolution aimed at limiting President Donald Trump's war powers regarding Iran, with a vote of 215-208. Four Republican representatives joined Democrats in supporting the resolution, indicating a growing impatience within the GOP concerning Trump's management of the conflict as his approval ratings decline. Speaker of the House Mike Johnson had urged Republicans to oppose the resolution, arguing it could weaken Trump's negotiating position. If the Senate also approves the resolution, Trump would need congressional approval to continue military operations in Iran. The White House has expressed concerns about the constitutionality of the resolution and may choose to disregard it.
In addition to the Iran resolution, Trump has faced challenges in other areas, including a recent retreat on the Kennedy Center's management and pushback from Senate Republicans regarding the proposed "anti-weaponization" fund. These developments reflect a tightening political landscape for Trump, who has seen his influence wane as Congress asserts more control over his agenda. Furthermore, Trump's recent appointment of Bill Pulte as acting director of national intelligence has drawn criticism from Republican lawmakers, and he experienced setbacks in primary elections, including the loss of an endorsed candidate in Iowa. Overall, these events suggest that Trump's political maneuverability is increasingly constrained as he approaches the upcoming elections.