The Pheu Thai Party has threatened to boycott the controversial draft constitution in a letter to the National Reform Council (NRC).
Samart Kaewmeechai, former Pheu Thai MP for Chiang Rai, led Pheu Thai members to parliament Thursday to hand the note to NRC chairman Thienchay Kiranandana.
The letter demonstrated the party's opposition to the proposed charter, Mr Samart said, and they wanted NRC members to be aware of their objections before the council takes a vote on the draft on Sept 6.