Before the court are the Trump administration's emergency appeals of lower court orders putting nationwide holds on the Republican president's push to deny citizenship to children born to people who are in the United States without proper documentation.

A case focused on birthright citizenship could come later, but the bulk of the argument is expected to concern whether a single judge can freeze a policy nationwide.

The Supreme Court is hearing arguments this morning on what’s outwardly a case about President Donald Trump’s attempt to restrict... Thomas opens the arguments asking for a historical analogue to universal injunctions.