Simplify the following text for a Grade 11 native English-speaking person.
Original: The PAD called for the resignation of the governments of Thaksin Shinawatra , Samak Sundaravej and Somchai Wongsawat , whom the PAD accused of being proxies for Thaksin .
Simplified: It has called for the resignation of three Prime ministers - Thaksin Shinawatra , Samak Sundaravej and Somchai Wongsawat .