Some U.S.-based users of WeChat are suing President Donald Trump in a bid to block an executive order that they say would effectively bar access in the U.S. to the hugely popular Chinese messaging app.The complaint, filed Friday in San Francisco, is being brought by the nonprofit U.S. WeChat Users Alliance and several people who say they rely on the app for work, worship and staying in touch with relatives in China. The plaintiffs said they are not affiliated with WeChat, nor its parent company, Tencent Holdings.In the lawsuit, they …

Video app TikTok said Saturday it will challenge in court a Trump administration crackdown on the popular Chinese-owned platform, which Washington accuses of being a national security threat.As tensions soar between the world’s two biggest economies, President Donald Trump signed an executive order on August 6 giving Americans 45 days to stop doing business with TikTok’s Chinese parent company ByteDance — effectively setting a deadline for a potential pressured sale of the app to a U.S. company.”To ensure that the rule of law is not discarded and that our company …