TikTok ban and 3-judge district courts

TikTok challenged the new law banning it (at least with Chinese ownership), alleging violations of the First Amendment, equal protection, bill of attainder, and taking. Pursuant to § 3(a) of Division H of the Act, it filed the petition with the D.C. Circuit.

Congress essentially adopted for challenges to the statute the procedure for challenges to regulations implementing and enforcing the statute. But reviewing regulatory action looks appellate, while reviewing the validity of enforcing legislation involves an exercise of original jurisdiction, including taking evidence about standing (unfortunately) and the plaintiff's factual allegations about things such as the impossibility of compliance and the effect on speech. And Congress had such a process if it wanted quick multi-judge review--3-judge district courts.