KMT's dominant position stems from its 14 incumbent mayoral and magistrate seats entering the November 28 nine-in-one contests, reinforced by sustained coordination with the TPP on joint nominations and primaries in multiple jurisdictions. This alliance, reaffirmed after the KMT's October 2025 leadership transition, has minimized vote-splitting among opposition supporters and consolidated anti-DPP sentiment ahead of the vote. Recent August 2026 legislative action by the KMT-TPP majority to place national referendums on issues such as nuclear power and absentee voting alongside the local races has further highlighted opposition unity. In contrast, the DPP holds only five seats from 2022 and confronts structural headwinds in local contests despite controlling the presidency, while the TPP's limited organizational reach and recent internal setbacks leave it with negligible prospects. Trader consensus reflects these incumbency and coordination dynamics as the primary drivers of the implied probabilities.