He became the official with lowest opinion poll since HK SAR Government was established in 1997 .
Lam decided to leave politics upon the expiry of his term of office on 30 June 2012 ; he will read theology at Oxford University from September .
Lam became the official with lowest opinion poll since HK SAR Government was established in 1997 .
Lam decided to leave politics upon the expiry of his term of office on 30 June 2012 ; he will read theology at Oxford University from September .