A joint sitting of the parliament on Wednesday rejected a charter amendment bill which would have ended senators' involvement in the election of the prime minister.
Today will be a chance for the 250 appointed senators to prove their mettle. By late evening, the 250 members of the Upper House and 500 MPs in the Lower House are expected to have cast votes on a charter amendment seeking to strip the Senate of its power to take part in electing a prime minister.
A bid to rid the Senate of the power to take part in electing a prime minister is underway in parliament as some lawmakers insisted such a change would uphold the Upper House's political neutrality.
A charter amendment plan seeking to strip the Senate of its power to take part in electing a prime minister is due to go before a joint sitting for debate today, according to the opposition whip.
The Election Commission (EC) will answer a petition delivered by activist Srisuwan Janya seeking a Constitutional Court interpretation of when Prime Minister Gen Prayut Chan-o-cha will have served his maximum eight-year tenure.