WASHINGTON (AP) — President Donald Trump on Thursday signed an executive order to keep TikTok running in the U.S. for another 90 days to give his administration more time to broker a deal to bring the social media platform under American ownership. It is the third time Trump has extended the deadline. The first one was through an executive order on Jan. 20, his first day in office, after the platform went dark briefly when a national ban — approved by Congress and upheld by the U.S. Supreme Court — took effect.