In its legal challenge against the law, TikTok has heavily leaned on arguments that the potential ban violates the First Amendment because it bars the app from continued speech unless it attracts a new owner through a complex divestment process. It has also argued divestment would change the speech on the platform because a new social platform would lack the algorithm that has driven its success.

In its response, the Justice Department argued TikTok has not raised any valid free speech claims, saying the law addresses national security concerns without targeting protected speech, and argues that China and ByteDance, as foreign entities, aren’t shielded by the First Amendment.

TikTok has also argued the U.S. law discriminates on viewpoints, citing statements from some lawmakers critical of what they viewed as an anti-Israel tilt on the platform during its war in Gaza.

Justice Department officials disputes that argument, saying the law at issue reflects their ongoing concern that China could weaponize technology against U.S. national security, a fear they say is made worse by demands that companies under Beijing’s control turn over sensitive data to the government. They say TikTok, under its current operating structure, is required to be responsive to those demands.

Oral arguments in the case is scheduled for September.