Not long before the Supreme Court heard arguments on whether to allow President Donald Trump’s restrictions on birthright citizenship to take effect, he falsely claimed on Truth Social that the United States is the only country that offers such a right.

The hearing will give a sense of how the justices are thinking about a case that could have a profound impact on Trump's powers.

The Supreme Court is weighing nationwide orders in Trump’s birthright citizenship ban. Split so far: The justices seem divided on scaling back orders blocking President Donald Trump’s birthright citizenship ban. Partially at issue is whether a single judge can block an order nationwide.

FOX News contributor and GWU law professor Jonathan Turley reacts to the Supreme Court taking on the birthright citizenship case. MARTHA MACCALLUM, FOX NEWS: So the discussions that have gone on in the Supreme Court today,

Norman Wong, whose great-grandfather brought the landmark case that enshrined birthright citizenship, says the new fight over the issue is "for the soul of our country."