House Republican leaders said today that they were planning to vote this week on legislation demanding that the video app TikTok cuts ties with its Chinese parent company or face a ban in the U.S. Lawmakers in both parties have described the app as a national security threat.

The House majority leader, Steve Scalise, said the chamber would try to quickly approve the bill through special procedures that are reserved for noncontroversial legislation. That approach reflected the effort’s growing momentum during an election year in which both Republicans and Democrats are eager to show they’re willing to be tough on China. President Biden has committed to signing the bill if it passes.

But the Republican push flies in the face of the party’s de facto leader, Donald Trump. Trump had pushed to ban TikTok while he was in office, but he has recently reversed course. Today, he said a ban would make young people “go crazy,” and also benefit Facebook, which he called an “enemy of the people.”

The House vote will test Trump’s ability to use his influence to help tank legislation in Congress, as he recently did with a bipartisan immigration bill. In the Senate, the majority leader has not yet committed to holding a vote.

The U.S. is not alone: My colleagues explained why countries are pushing to ban TikTok.