Advisers to Donald Trump have discussed having the incoming president sign an executive order to “save” TikTok shortly after he’s sworn in Monday in the Capitol Rotunda — in the presence of the video app’s chief executive as well as lawmakers who backed legislation to ban the app as a national security threat.

As a result, TikTok reappeared for users on Sunday afternoon with a message thanking Trump for his intervention. “Thanks to President Trump’s efforts, TikTok is back in the US!” the message read.

During his first term as president, Donald Trump led the effort to ban TikTok, the hugely popular video-sharing site he said posed a threat to U.S. national security. But on the eve of his return to the White House,