BANGKgOK  - Thai Prime Minister Samak Sundaravej's five-month-old government was in disarray Thursday after the Foreign Minister resigned following a series of bruising court defeats for the cabinet. Foreign Minister Noppadon Pattama became the third top official in the ruling People Power Party (PPP) forced out of office in less than 48 hours. The party's deputy leader Yongyut Tiyapairat, who was a former speaker of parliament, was banned from politics for five years on Tuesday, after the Supreme Court upheld vote buying charges against him. The following day, Health Minister Chiya Sasomsub was removed from office by another top court, which found he had illegally concealed his wife's assets. But Noppadon's court loss carries potentially damning implications for Thailand's entire government. The Constitutional Court ruled on Tuesday that Noppadon and the entire cabinet had violated the charter by not seeking parliamentary approval for a deal with Cambodia over a disputed temple on the border. The deal signed by Noppadon was approved by the cabinet and military chiefs, supporting Cambodia's bid to seek World Heritage status for the 900-year-old Preah Vihear temple. The verdict sparked public calls for the entire cabinet to resign, and the Opposition Democrat Party said it might launch an impeachment process.