Selina Chow and James Tien returned to the party leadership after the intra-party split between James's brother Michael Tien and Tommy Cheung over the Minimum Wage Bill which resulted Michael's departure from the party. In January 2011, Chow succeeded Tommy Cheung as the vice-chairwoman for the second time. In the 2012 Chief Executive election, the Liberals initially supported their former member and Chief Secretary for Administration Henry Tang but withdrew their support after Henry Tang's illegal basement controversy. However, they refused to support another Beijing-supported candidate Leung Chun-ying. Selina Chow and party chairwoman Miriam Lau defended their null vote as "the responsible decision" as they could not with all conscience vote for either Tang or Leung; their internal poll of 1,900 people showed 30 percent would cast blank votes.