Former prime minister Somchai Wongsawat, brother-in-law of party father and former legislator Thaksin Shinawatra, lost in his charge for a seat in the Senate in one of the two elections held in Pheu Thai.
Legislators were chosen not from political events but to reflect 20 different fields of work and career, including fairness, education, public health, business, arts and activities, the old and ethnic minorities.
The new congress, which is 50 users smaller than the previous one and appointed by the ruling junta in 2014, will no longer cast a ballot to endorse the prime minister following an election.
After last year’s common election, Pita Limjaroenrat, the party’s president, was impeached by the recent republic, who had won the most chairs.
The junta’s plan to alter Thailand’s law, which it had drafted after its oppressive gains, will also need the government’s approval from at least a second of the lower house.
On Tuesday, the final results may be formally confirmed.