Pheu Thai leader Viroj Pao-in is set to step down to make way for a new leader who will also lead the opposition against Gen Prayut Chan-o-cha’s government.

The Pheu Thai Party sets to submit a petition to the Constitutional Court next Monday, asking it to nullify the junta chief’s order to amend the political party law to extend parties’ administrative work periods ahead of the general election, its secretary-general, Phumtham Wechayachai, said on Wednesday.