The Supreme Court gave a skeptical hearing Thursday to a lawyer for President Trump who was appealing rulings that blocked his plan to deny citizenship to newborns whose parents were in this country illegally or temporarily.

The administration asks for power to implement the president’s reinterpretation of the 14th Amendment after lower courts found it unconstitutional.

The Supreme Court is weighing whether to allow President Donald Trump’s restrictions on birthright citizenship to temporarily take effect in most of the country, even if they might ultimately be found unconstitutional.