Pressure has mounted on Taiwan leader Chen Shui-bian to step down after he was questioned in August 2006 over alleged misuse of funds intended for "state" affairs. Shih Ming-teh, Chen's former ally and former Democratic Progressive Party (DPP) chairman, launched in August an anti-Chen campaign calling for his resignation. However, Chen has denied any wrongdoing and vowed to stay on until his second and final term ends in May 2008.