The first cohort of 25 senators was sworn in at the national assembly headquarters in Porto-Novo during a ceremony led by elisabeth pognon, who holds the position of second eldest senator present. The opening session began with formal proceedings, including an inaugural address and an official group photograph, before senators proceeded to closed-door discussions. In her remarks, pognon emphasized that the senate’s creation stems directly from the constitutional amendment adopted on december 17, 2025. She highlighted its role in enhancing public trust in institutions and fostering political stability across the country.

The senate’s responsibilities differ markedly from those of the constitutional court, which focuses on legal interpretations. Under article 113.1 of the constitution, the senate is tasked with preserving national unity, strengthening state institutions, and upholding democracy, peace, and political harmony. Additionally, it holds the authority to impose sanctions on public figures who violate political or civic rights, provided such measures align with constitutional procedures.

Another critical function of the senate involves issuing non-objection opinions on constitutional amendments, electoral laws, and regulations governing political parties. This oversight ensures the senate plays a central role in shaping laws deemed vital to the nation’s institutional framework. Comprising 25 members as stipulated by the constitution, the first senate includes ex-officio members and appointees, such as former public officials and retired defense and security personnel. With this inauguration, Benin now operates under a bicameral parliamentary system for the first time since the 1990 constitution came into force.