In the 2012 Legislative Council election, with 48,295 votes, among the highest votes in the constituency. In 2013, he and other radical pan-democrats started filibustering by moving a total of 710 amendments on the Budget Appropriation Bill debate, to press for a universal pension scheme and a HK$10,000 cash handout. The government warned that the service would shut down if the budget bill do not pass. LegCo President Jasper Tsang ordered to end the filibuster on 13 May after 55 hours spent to debate 17 of the 148 amendments. The Appropriation Bill was passed on 21 May 2013 with 684 amendments negatived.