Guinea-Bissau will hold a constitutional referendum on Aug. 30, 2026, to determine whether to expand the powers of the presidency [1].

The vote occurs as the country is governed by a military junta that seized power following a coup. The outcome could fundamentally reshape the balance of power in the nation as it attempts to transition back to civilian rule.

The military junta said the move to broaden presidential authority is part of the transition process. However, opposition parties have expressed concern that the changes could be used to manipulate future political outcomes. Some opposition groups have called for a boycott of the referendum [2].

The proposed changes to the constitution arrive shortly before the country is scheduled to hold general elections in December 2026 [3]. The timing has intensified the debate over whether the new legal framework is intended to stabilize the government or consolidate power for the current leadership.

Bissau, the capital, remains the center of these political tensions. The junta said the expanded powers are necessary for effective governance during the handover to a civilian administration [4]. Critics argue that increasing the authority of the president reduces the checks and balances necessary to prevent authoritarianism.

International observers are monitoring the situation as the Aug. 30 [1] vote approaches. The result of the referendum will establish the legal parameters for the candidates who compete in the December [3] elections. The stability of the region depends largely on whether the transition is viewed as legitimate by the domestic opposition, and the international community.

The vote occurs as the country is governed by a military junta that seized power following a coup.

The referendum represents a critical junction for Guinea-Bissau's democratic trajectory. By expanding presidential powers just months before general elections, the military junta is creating a legal environment that may favor the incumbent or a hand-picked successor. If the opposition's fears of election rigging are realized, the transition to civilian rule may be viewed as a formality rather than a genuine democratic restoration, potentially leading to further political instability.