In a landmark ruling delivered on Thursday, July 9, 2026, Senegal’s Constitutional Council struck down a constitutional amendment bill approved by the National Assembly in late June. The decision, issued at the request of President Bassirou Diomaye Faye, exposed critical procedural flaws in the law’s adoption, reinforcing the judiciary’s role as a safeguard against legislative excesses.

An unprecedented presidential challenge to legislative procedure

The amendment, which sought sweeping institutional changes—including rebalancing executive and legislative powers, banning the president from leading a political party, and establishing a new Constitutional Court—had cleared the National Assembly on June 29, 2026. Yet, in an unusual move, President Faye himself filed an urgent appeal with the Constitutional Council on July 6. While the challenge did not contest the reforms’ substance, it focused on procedural violations during parliamentary debate. The presidency submitted a comprehensive dossier, including session transcripts, rejected government amendments, and audiovisual recordings of legislative proceedings, to substantiate its case.

Financial and procedural violations invalidate the law

The Council’s ruling hinged on two constitutional violations outlined in Article 82:

• Unfunded mandates (Clause 2): The Council reiterated the principle that parliamentary amendments creating or increasing public expenditures must include compensatory revenue proposals. The amendment violated this rule by imposing new financial burdens without offsetting measures.
• Executive oversight bypass (Clause 4): The Council found the National Assembly had ignored the government’s request to delay or reject problematic provisions, infringing on the executive’s legislative prerogatives during the negotiation process.

The decision declared the law ipso facto invalid, preempting any further steps such as promulgation or a public referendum.

A judicial ruling reshapes Senegal’s political landscape

While the ruling party framed the decision as a technical setback requiring a revised approach, opposition factions hailed it as a triumph of constitutional integrity over legislative haste. Far from undermining state institutions, the verdict underscores the Constitutional Council’s independence and capacity to mediate high-stakes disputes between the presidency and parliament.

The annulment of Law No. 18/2026 signals a pivotal moment in Senegal’s 2026 political calendar. For President Faye’s administration, the path forward now demands a reassessment of legislative strategy—whether through a revised bill or direct public approval via referendum—to fulfill the reforms pledged to the Senegalese people.

By Boureima Amadou — Reporter