A week ago Donald Trump said that he could and would ban the video sharing app Tiktok, and on Thursday night he issued an executive order to block transactions with its parent company, Bytedance. It’s set to take effect in 45 days, which is just beyond the September 15th deadline Microsoft publicly announced for its negotiations to buy the company.

At same time, Trump also issued an executive order pushing the same ban for WeChat and its parent company Tencent. These orders will certainly be challenged in court, but Tencent has investments in many US companies, while WeChat allows communication for people inside and outside China. In the orders, the reason given for the ban is “national emergency with respect to the information and communications technology and services supply chain.”