The Ongo Niua 17 by-election, set for 8 October 2026, follows the Supreme Court’s voiding of the prior winner’s seat on bribery grounds tied to the 2025 general election. Five candidates have registered across the small Niuas constituency’s villages, creating a fragmented field under first-past-the-post rules. The leading contenders—‘Aminiasi Tonga Pau’u Tangimana, Paea ‘i Vaha Filimoehala, and Sione Tuifio Hui—trade narrow edges in trader pricing, with the balance split among the remaining entrants and other. Village-based support networks and the absence of a single dominant figure sustain the close contest. Final voter rolls close later this month, after which any late shifts in local turnout or alliances could separate the top candidates before polling day.