Recent political instability in Guinea-Bissau, including the November 2025 coup that ousted President Umaro Sissoco Embaló and suspended prior election results, continues to shape the fragmented field for the upcoming presidential vote. A military-led transitional government oversaw an August 2026 constitutional referendum that expanded presidential powers, reduced parliamentary seats, and imposed a five-year residency requirement for candidates, with official results showing roughly 70 percent approval. However, missed candidacy deadlines and other procedural shortfalls prompted transitional authorities in early October 2026 to declare the scheduled December 6 date unworkable, raising prospects of further postponement. These factors, combined with a crowded slate of contenders and limited polling data, sustain close trader pricing among leading names while underscoring risks from eligibility disputes, security dynamics, and the transition timeline.