Angry opposition legislators scuffled with police in Taipei yesterday when they attempted to force their way into the Presidential Office during a protest against President Chen Shui-bian's refusal to respond to a move to oust him. About 40 legislators from the Kuomintang and the People First Party (PFP) shouted 'A-bian, step down' and 'Eradicate corruption to save Taiwan' as they broke through a police cordon to move towards the presidential office. The lawmakers, waving banners and placards reading 'Contempt of legislature' and 'Abuse of constitution', were stopped just short of the main gate of Mr Chen's office after a brief scuffle with about 100 police. Mr Chen, under pressure over corruption scandals embroiling his family, has refused to heed the legislature's demand that he issue a written rebuttal to a recall motion initiated by the KMT and PFP to remove him from office. Instead, his office declared on Monday that Mr Chen, nicknamed A-bian, would respond with a televised address last night focusing on his government's achievements in the past six years, a move apparently in defiance of the constitutional requirement that a president must issue a written defence in response to a recall motion. Insisting that the opposition's recall motion was not justified because the president had not been directly involved in any corruption scandal, Mr Chen's office has said there is no need for the president to issue such a defence. Mr Chen has come under mounting pressure to resign after his son-in-law, Chao Chien-ming, was arrested last month for alleged insider trading. The president's wife, Wu Shu-chen, has also come under investigation for allegedly accepting and selling NT$5 million ($1.2 million) worth of department store gift vouchers in exchange for lobbying. The president's former chief aide has also been charged with corruption. In a joint news conference yesterday afternoon, the KMT and PFP accused Mr Chen of being contemptuous of the legislature and the people. They demanded that he answer 30 questions in last night's televised speech, including whether his wife had accepted the gift vouchers and whether his son-in-law had been involved in an insider trading scandal, to prove he was capable of continuing to lead. 'It is just a simple yes or no. Just tell us whether Wu Shu-chen accepted the gift certificates, whether Chao Chien-ming obtained inside information to sell the Taiwan Development Corp's shares, and whether Chao Yu-chu [Chao's father] embezzled NT$10 million,' PFP legislator Feng Ting-kuo said. Earlier, KMT chairman Ma Ying-jeou said he would make a televised address at 8pm today in response to Mr Chen. Mr Ma's PFP counterpart, James Soong Chu-yu, said that if the recall motion failed, his party would launch another campaign to seek a no-confidence vote to topple Mr Chen's cabinet. In response, the Democratic Progressive Party condemned the opposition for creating political instability in Taiwan.