Whakaotihia te rerenga e whai ake nei: I te pooti a te Kaunihera Ture 2020, i tohua a Cheng e te Pāti Kaunihera ki te whakataetae i te rohe pooti o Hong Kong Island. I whakakapia e ia a Tanya Chan, i aukatihia i te whakataetae na te mea i whakawātea ia mo te
2014 Ngā whakaeke Occupy. I roto i nga pooti mo te manapori i te Hōngongoi 2020, ko Cheng te tuawha, i muri i a Ted Hui, Tiffany Yuen, me Fergus Leung. Ko ana pooti 11,090 (12.26% o te pooti) i whakawhiwhia ki a ia he waahi i te pooti ture.