WeChat ban may jolt lives of many. Chinese-Americans use apps for communication, delivery services, payments, appointments, news. In an executive order last week, President Donald Trump announced a ban on Chinese social media apps Tik Tok and WeChat. WeChat is heavily used by Chinese in Arcadia, Alhambra, San Gabriel. WeChat is an unofficial channel of the City of Arcadia. WeChat is the backbone of Chinese social organizing, from business to political movements.