WASHINGTON — President Trump on Tuesday signed an executive order prohibiting transactions with eight Chinese software applications, including Alipay, the payment platform owned by Ant Group, and WeChat Pay, which is owned by Tencent.The move, two weeks before the end of Mr. Trump’s term, could help lock in his administration’s harsher stance toward China and is likely to further rankle Beijing. But defining the scope of the order and enforcing it would presumably fall to the incoming Biden administration, which has not clarified whether it will try to enact Mr. Trump’s bans, creating uncertainty about the efficacy …
