NEW YORK (AP) — President Donald Trump says he wants to take action to ban TikTok, a popular Chinese-owned video app that has been a source of national security and censorship concerns.

The threat comes as Microsoft Corp. is in advanced talks to buy the Chinese app, owned by Bytedance Ltd., according to a person familiar with the discussions who spoke only on condition of anonymity because of the sensitivity to the negotiations. Microsoft declined to comment.

It's not clear whether Trump would accept a divestment as a concession. But there have been reports of U.S. tech giants and financial fi...