Ruling on Yongyuth, a former PPP deputy leader, is due on 4pm today. Supporters of Yongyuth were seen arriving at the Supreme Court's Electoral Fraud Division.
It is still unclear whether Yongyuth will be present to listen to the ruling himself. A source close to him said if protesters of People's Alliance for Democracy gather at the court.
Today's ruling will be historic that could create a far-reaching political impact.
The court is deciding whether to accept the Election Commission's ruling that had disqualified and red-carded Yongyuth for committing electoral offence in Chiang Rai.