太陽花學運
Tang became involved in politics during Taiwan's 2014 Sunflower Student Movement demonstrations, in which Tang volunteered to help the protesters occupying the Taiwanese parliament building broadcast their message. The prime minister invited Tang to build media literacy curriculum for Taiwan's schools, which was implemented in late 2017. Following this work, Tang was appointed minister without portfolio for digital affairs in the Lin Chuan cabinet in August 2016, and took office as the digital minister on October 1, being placed in charge of helping government agencies communicate policy goals and managing information published by the government, both via digital means. At age 35, Tang was the youngest minister without portfolio in Taiwanese history and was given this role to bridge the gap between the older and younger generations.