Teo was announced as PKR's and the Alliance of Hope's (PH) candidate to defend the Miri parliamentary seat in the 2018 Malaysian general election on April 14, 2018. Despite Miri being one of the targeted seats for SUPP to re-capture, Teo emphatically retained his seat with an increased majority. Later in July 2018, Teo was re-elected unopposed as chairperson of PKR's Miri branch.
