Pheu Thai is looking to end the rule of Prime Minister Prayut Chan-o-cha, who has expressed hopes to carry on in office for a maximum of two years, by scoring a landslide win in the next general election.
The main opposition party is known to be aligned with the red-shirt United Front for Democracy against Dictatorship (UDD) which formed part of the party's electoral support and proved to be a well-organised and powerful ally outside parliament for years.
