PDP leader and Deputy Prime Minister under Banharn
Chamlong, strongly criticized for mishandling internal PDP politics in the last days of the Chuan-government, retired from politics and hand-picked Thaksin as new PDP leader. Thaksin ran for election for the first time for the constitutional tribunal and lost.
Thaksin joined the government of Banharn Silpa-Archa and was appointed Deputy Prime Minister in charge of Bangkok traffic. In May 1996, he and four other PDP ministers quit the Banharn Cabinet (while retaining their MP seats), prompting a Cabinet reshuffle. Many have claimed that Thaksin's move was designed to help give Chamlong Srimuang a boost in the June 1996 Bangkok Governor elections, which Chamlong returned from retirement to contest.[38] But Chamlong lost to Bhichit Rattakul, an independent.
Chamlong's failure to buttress the PDP's failing power base in Bangkok amplified divisions in the PDP, particularly between Chamlong's "temple" faction and Thaksin's. Soon afterwards, Chamlong announced he was retiring again from politics.
Thaksin and the PDP pulled out of the Banharn-government in August 1996. In a subsequent no-confidence debate, the PDP gave evidence against the Banharn government, and in September 1996 Banharn dissolved Parliament.
Thaksin announced he would not run in the subsequent November 1996 elections but would remain as leader of the PDP. It suffered a fatal defeat in the elections, winning only one seat, and soon imploded, with most members resigning.