https://www.reuters.com/article/us-usa-china-tiktok-lawsuit/tiktok-filed-a-complaint-against-trump-administration-to-block-u-s-ban-bloomberg-news-idUSKBN26A0DP >Popular video-sharing app TikTok has asked a U.S. judge to block the Trump administration banning on the Chinese social-media network, Bloomberg News reported on Saturday.