President Donald Trump said Monday that TikTok will be banned in the United States on Sept. 15 unless an American company buys the U.S. operations of the Chinese-owned short-form video app deemed a potential national security risk.His remarks came after media reported that Microsoft Corp. was in talks to buy the U.S. operations of TikTok, a deal that would give the U.S. software giant a popular social-media service while alleviating the Trump administration's pressure on TikTok and its parent company ByteDance Ltd.Trump told reporters that he has talked with Microsoft and suggested that the…READ FULL ARTICLE