In a landmark ruling made public on Thursday, July 9, 2026, Sénégal’s Constitutional Council struck down the constitutional revision law that had been passed by the National Assembly in late June. Following an urgent appeal from President Bassirou Diomaye Faye, the esteemed ‘Sages’ of the Council determined that the adoption process for Law No. 18/2026 contravened the nation’s fundamental charter. This judicial turn of events not only exposes significant procedural disagreements at the highest levels of government but also reaffirms the crucial oversight role of the country’s top court.

An unprecedented presidential referral on procedural grounds

The proposed legislation, which aimed for a significant overhaul of the institutional framework—including a rebalancing of powers between the executive and legislative branches, a prohibition on the head of state leading a political party, and the establishment of a Constitutional Court—had been approved by the National Assembly on June 29, 2026.

However, in an unusual move for a bill initially championed by the ruling coalition, President Bassirou Diomaye Faye himself lodged an appeal with the Constitutional Council on July 6. Filed under an urgent procedure by his legal advisors, this appeal did not contest the substance of the proposed reforms but specifically sought to establish that the parliamentary adoption process failed to meet constitutional requirements. To support his referral, the presidency submitted a comprehensive dossier, including debate transcripts, rejected government amendments, and audio-video recordings of the parliamentary sessions.

Financial and procedural reasons behind the Council’s rejection

To declare the constitutional law non-compliant, the Constitutional Council relied on stringent legal arguments, first dismissing the objection raised by the President of the National Assembly, who had challenged the ‘Sages” jurisdiction in constitutional matters.

Two primary grounds, outlined in Article 82 of the Senegalese Constitution, justified this invalidation:

• Creation of public burdens without compensation (Paragraph 2): The ‘Sages’ reiterated the fundamental principle that proposals or amendments from deputies are inadmissible if their adoption leads to a reduction in public resources or an increase in public expenditure, unless accompanied by compensatory revenue proposals. The text examined by the deputies, however, violated this strict financial rule.
• Refusal to consider Executive objections (Paragraph 4): The high court found that the National Assembly had refused to adjourn debates or reject problematic provisions at the express request of the government, thereby infringing upon the executive’s prerogatives within the legislative process.

“This violation of the texts affects the validity of the revision law itself,” the Constitutional Council’s decision stipulated, leading to its outright annulment before any promulgation or submission to a referendum.

A judicial arbitration at the heart of political debate

This verdict from the ‘Sages’ marks a pivotal moment in Sénégal’s 2026 political calendar. While supporters of the ruling party view it as a technical setback requiring a more rigorous re-drafting of the legislation, the opposition hails it as a triumph of legal principles over legislative haste.

Far from weakening institutions, this decision underscores the vibrancy and independence of constitutional justice in Sénégal, demonstrating its capacity to arbitrate significant disputes between the presidency and Parliament.

By invalidating Law No. 18/2026, the Constitutional Council reaffirms that even the most ambitious reforms must rigorously adhere to the procedures set forth by the nation’s fundamental charter. For President Bassirou Diomaye Faye and his administration, the focus now shifts to re-evaluating their legislative strategy to fulfill the reforms promised to the Senegalese people, whether through a newly amended text or directly via a popular referendum.