George Washington University law professor Jonathan Turley said Sunday that justices on the Supreme Court are showing signs of “frustration” with lower courts over deportation cases.

The Supreme Court temporarily halted the Trump administration’s efforts to use the Alien Enemies Act of 1798 to deport members of the Venezuelan prison gang Tren de Aragua (TdA) early Saturday morning, saying detainees needed to have a chance to challenge their deportations. Turley said the high court was being forced into an “increasingly improvisational” approach by the sheer number of emergency cases.

“What Justice Alito is objecting to is that this is becoming increasingly improvisational,” Turley told “Fox News Sunday” host Shannon Bream. “You have covered the Supreme Court for years, as I have, and we rarely see this level of number of emergency cases going in front of the Supreme Court. And a lot of them are half-baked in the sense that they simply don’t have the normal details, the record that you have. And the justices are expressing their frustration.”