The Trump administration’s onslaught on asylum has led to dozens of legal challenges—and the legal tactics used to defend the policies are raising concerns from some conservatives on the federal bench.

While conservative members of the bench tend to grant more deference to the administration when it comes to immigration policy, some GOP-appointed judges have taken issue with the reasons presented in court to justify the changes. Those closely watching immigration cases say that as asylum restrictions reach unprecedented levels, judges are more skeptical of the claims presented in court and are unwilling to let major changes go unchecked.