A power struggle between two Liberal Party lawmakers for the party's chairmanship is set to intensify, as one key legislator who could swing a vote either way said yesterday he had yet to decide who to support. Tommy Cheung Yu-yan, one of six party lawmakers who initially pledged to back Jeffrey Lam Kin-fun, said he had to reassess the situation in light of the latest developments before making a decision. Speaking to the South China Morning Post from Europe before returning to Hong Kong today to attend Legco's first meeting of the session, Mr Cheung said whether Mr Lam or acting chairwoman Miriam Lau Kin-yee should take the party's helm would be a decision for all party members rather than individual party lawmakers. 'I have been away on holiday for almost a month and am out of touch with the latest developments. Although I promised to support someone in the past because it was a consensus among us six, I have to reassess that decision after reviewing what happened in the past weeks,' Mr Cheung said. After the party's electoral defeat and the subsequent resignation of James Tien Pei-chun from the chairmanship, the party's six lawmakers agreed to support Mr Lam's run for the top post. But following a row about the party's stance on contesting direct elections and its relationship with property developers, Ms Lau was considered by some members as being, in the words of Mr Tien, 'more independent against outside pressure'. Also, a source close to party legislator Vincent Fang Kang denied media reports that Mr Fang, who was considered to be a supporter of Ms Lau, had switched sides. The source said Mr Fang wanted the two to negotiate without becoming embroiled in an open electoral battle that could split the party. At present, Mr Lam is thought to be supported by lawmakers Sophie Leung Lau Yau-fun and Andrew Leung Kwan-yuen, while Ms Lau's camp consists of Mr Fang, former chairman Mr Tien and a large number of party rank-and-filers. Mr Cheung's position is crucial, as party rules require any bid for chairmanship to be supported by 25 per cent of lawmakers before the filing of a nomination. Party district councillor Alice Lam Chui-lin said while it was unclear who would win, party members were more familiar with Ms Lau because of her participation in party district affairs. 'At the end of the day, it is the will of the common party members that counts. Even if there is an election to be held for the chairmanship, I hope there won't be a split in the party and whoever loses will not hold a grudge,' Ms Lam said. The party's central committee will meet today to confirm a two-week nomination period from tomorrow.