A panel of federal judges on Monday expressed doubt that a lawsuit accusing Reddit of illegally profiting off child pornography must be revived.

At the heart of the case is a law signed by former President Donald Trump that amended Section 230 of the Communications Decency Act, which gives broad civil immunity to technology giants over what third-party users post to their sites. The 2018 law, called Fight Online Sex Trafficking Act, created a Section 230 exemption that allows civil claims against websites if the alleged underlying conduct violates criminal sex trafficking laws.