Leaders of the largest pro-government party faced the media with tired faces yesterday after an emotional, 12-hour ordeal of setbacks in Sunday's polls. Putting on a brave face, DAB chairman Tsang Yok-sing was flanked by four core members of the party when he made his widely expected announcement: he had tendered his resignation as chairman, taking responsibility for the huge setback. His party colleagues remained stony-faced and silent while reporters grilled him over the reasons for the results. The only time vice-chairman Ip Kwok-him squeezed out a smile was when a reporter asked whether he should resign from his post as party vice-chairman. Mr Ip's defeat by The Frontier's Cyd Ho Sau-lan is generally regarded as having dealt a severe blow to the party. Although Mr Ip appeared prepared to argue, Mr Tsang was quick to prevent any possibility of a spat, saying: 'I don't think it's necessary. If you talk about responsibility, it's the problem of the chairman. I don't think there's any need to extend the scope of resignation.' His calm demeanour was a marked contrast to the night before. Even before the full scale of defeat had started to reveal itself around midnight on Sunday, Mr Tsang seemed shaken by the repeated mobile phone calls he received reporting successive defeats in other constituencies. He sat slumped in a folding chair inside the Kwun Lung polling station as Mr Ip's doom became clear. 'On this night, anything could happen,' a clearly distressed Mr Tsang sighed, before repeatedly poking his forehead with his index and middle fingers. 'This is all the fault of the party, it's all our fault.' When asked how he felt being bombarded with bad news, Mr Tsang said: 'What else can I feel? I can do nothing except waiting for the next phone call.' Mr Tsang was nonetheless able to make jokes yesterday, when asked whether his offer to resign was just a 'show'. 'I've already mentioned that the central committee will make a decision next Tuesday. Let's see how long this 'show' will last,' a smiling chairman said. The 30-minute briefing sparked a guessing game as to who might take over the chairmanship. But even the most likely candidate, vice-chairman Tam Yiu-chung, was reluctant to address speculation about his chances.