S. 2087 prohibits the federal government from spending money on military force against Iran unless Congress first declares war or passes a specific law authorizing such force. The bill, introduced by Senator Sanders and seven other senators in June 2025, clarifies that existing authorizations for military force—including those used in previous Middle East conflicts—do not apply to Iran. The legislation affects the executive branch and military by requiring explicit congressional approval before any military operations against Iran can proceed, with a narrow exception for defensive actions authorized under the War Powers Resolution. No specific funding amounts or timelines are included in the bill; rather, it establishes a legal requirement that must be met before any future military spending related to Iran can occur. The bill essentially reinforces Congress's constitutional power to control federal spending and declare war, preventing unilateral executive military action against Iran.
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