Former President Donald Trump broke with the Republican Party on Monday, once again lamenting legislation that will force China to cede control over the TikTok social media app.

TikTok is a key spying and influence tool for the Chinese Communist Party. But newly passed and soon-to-be-signed legislation means that TikTok’s Chinese Communist Party-linked owner, ByteDance, will have to divest itself of the app or see TikTok banned in the United States.