Trump says he will ban TikTok through executive action
Explanation of the current legal structure that can be used to ban/force divestment of TikTok:https://www.lawfareblog.com/tiktok-and-law-primer-case-you-n...In short, a president has substantial powers (granted by Congress via IEEPA and CFIUS) to institute a ban or force a divestment of any company "engaged in interstate commerce in the United States", if "national emergency" or "national security" is involved. So, legally, it seems that president can ban TikTok, under certain conditions (that may not be so difficult to achieve). The link above only explains the current legal framework, not whether banning the TikTok is in itself a good or a bad thing. IANAL, so I can't judge the competence of the presented arguments, but it is written by a respected law professor.