People’s Party Holds Key to Thailand’s Next Prime Minister

Nattaphong Ruangpanyawut, leader of the People's Party, announces at party headquarters on August 30, 2025, that party members will decide whom to support as the new Prime Minister on September 1.

BANGKOK —  Thailand’s political future hangs in the balance as the opposition People’s Party, with 143 parliamentary seats, emerges as the decisive kingmaker following the Constitutional Court’s removal of Prime Minister Paetongtarn Shinawatra on August 29.

Bhumjaithai Party leader Anutin Charnvirakul, 58, has moved quickly to secure the People’s Party’s support by accepting their key demand to dissolve parliament within four months, while the ruling Pheu Thai Party scrambles to retain power by proposing veteran politician Chaikasem Nitisiri as a candidate and accelerating the timeframe for drafting a new constitution.

Anutin Makes His Move

Anutin swiftly declared himself ready to become Thailand’s 32nd Prime Minister, claiming he has been prepared for this role since 2019. His rapid mobilization suggests advance preparation, as he immediately began negotiating for support from the opposition People’s Party, accepting all conditions laid out by party leader Nattaphong Ruangpanyawut.

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The People’s Party had announced they would support any PM candidate who commits to dissolving parliament within four months, with the stipulation that the People’s Party would not join the government coalition.

Coalition Reshuffling

Anutin has strategically courted former government coalition partners who became disenchanted with Pheu Thai, including the Kla Dharma Party and roughly half of the United Thai Nation Party, which has experienced internal divisions.

anutin 30 0 2025
Anutin Charnvirakul poses with leaders from the Kla Dharma Party and half the leadership of the United Thai Nation Party who came to support his bid for Prime Minister at Bhumjaithai Party headquarters, August 30, 2025.

Meanwhile, Pheu Thai Party, led by acting PM Phumtham Wechayachai, called an emergency cabinet meeting at Government House on Saturday to announce plans for continuing governance, despite incomplete attendance from coalition partners.

The Kingmaker Role

The parliamentary arithmetic has fundamentally changed from the previous 253-239 government-opposition split. The People’s Party now holds the decisive position with 143 seats – the largest bloc in parliament – while Pheu Thai follows with 140 seats.

Pheu Thai has appointed party secretary Sorawong Thienthong to negotiate with the People’s Party, proposing 76-year-old former Justice Minister Chaikasem Nitisiri as their third PM candidate. The party also stated that if the process under the conditions is completed ahead of schedule, the government will dissolve parliament immediately.

Behind-the-Scenes Maneuvering

Former PM Thaksin Shinawatra has been conducting backroom negotiations with Move Forward co-founder Thanathorn Juangroongruangkit, who plays a key advisory role within the People’s Party. However, Thanathorn reportedly told Thaksin that the People’s Party’s position remains firm: any PM candidate must dissolve parliament within four months and hold a constitutional referendum.

The Strategic Calculation

Acting PM Phumtham has warned People’s Party leaders to consider the consequences of allying with Bhumjaithai, emphasizing that two major ongoing cases – the Senate systematic collusive voting scandal and the Khao Kradong land dispute – would proceed regardless.

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Acting Prime Minister Phumtham Wechayachai announces at Government House his intention to negotiate with the People’s Party for support of Chaikasem Nitisiri as Prime Minister, August 30, 2025.

The tension between Pheu Thai and Bhumjaithai escalated after the government initiated investigations into systematic Senate vote-buying, allegedly involving the “blue shirt” faction closely aligned with Bhumjaithai. The probe uncovered suspicious voting patterns and financial evidence trails.

The final rupture occurred when Cambodian leader Hun Sen released a private conversation with PM Paetongtarn on June 18, prompting Bhumjaithai to withdraw from government the next day, coinciding with 36 “blue shirt” senators filing the constitutional petition that ultimately removed Paetongtarn.

The People’s Party Dilemma

The People’s Party – successor to the dissolved Move Forward Party – faces a critical choice: accept a four-month timeline to work with Pheu Thai on constitutional amendments while allowing the Senate and land cases to proceed, or support Anutin’s bid as revenge for Pheu Thai’s past abandonment when coalition formation was impossible due to holdover coup-era senators.

Party leader Nattaphong Ruangpanyawut announced the People’s Party will convene on Monday, September 1, to make their decisive choice between these two paths.

Bottom Line: Thailand faces a high-stakes political standoff where the People’s Party’s 143 seats will determine whether Anutin or a Pheu Thai candidate becomes interim PM, with the ultimate outcome being new elections within 4-6 months regardless of who wins.

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