Withdrawal of UMNO Support for Negeri Sembilan Chief Minister Aminuddin Harun
Introduction
On April 27, 2026, the United Malays National Organisation (UMNO) announced the withdrawal of its support for the Chief Minister of Negeri Sembilan, Aminuddin Harun, resulting in the administration's loss of a legislative majority.
Main Body
The current political instability originated from a dispute regarding the state's monarchy. On April 19, the council of four Undangs—territorial chiefs of Sungai Ujong, Rembau, Johol, and Jelebu—declared the removal of ruler Tuanku Muhriz and named Tunku Nadzaruddin Tuanku Ja’afar as the successor. This action is consistent with the Adat Perpatih system, a matrilineal tradition where the Yang di-Pertuan Besar is elected and can be deposed by the Undangs. Chief Minister Aminuddin Harun subsequently asserted that the declaration was invalid, citing the prior dismissal of the Sungai Ujong chieftain, Mubarak Dohak. In response to the Chief Minister's position, all 14 UMNO assemblypersons unanimously withdrew their support for the administration. UMNO chairperson Jalaluddin Alias stated that the party intends to defend the state's customary institutions and constitution, noting that state executive council members were not informed of the Chief Minister's discussions prior to the escalation of the crisis. Consequently, the administration now holds 17 seats in the 36-member assembly, falling short of the 19 seats required for a simple majority. Concurrent with these developments, the opposition coalition Perikatan Nasional (PN), represented by Mohamed Hanifah Abu Baker, expressed a readiness to collaborate with the 14 BN/UMNO lawmakers to ensure administrative continuity. This potential alignment is evidenced by a letter of cooperation delivered to UMNO secretary Mustapha Nagoor. From an analytical perspective, this state-level friction may reflect broader tensions within the federal unity government, where Pakatan Harapan and Barisan Nasional are partners. Observers suggest that the incident highlights fragile ties between these allies as they navigate competing interests ahead of national elections scheduled within two years.
Conclusion
Chief Minister Aminuddin Harun remains in his post pending clarification of his majority support, per the request of ruler Tuanku Muhriz, while the state government continues its operations.