The U.S. Supreme Court will hear arguments this week in a case that is both unusual and potentially seismic in its consequences. The 14th Amendment says that anyone born in the United States is automatically a citizen of this country – and has been settled law since the 19th century. President Donald Trump is seeking to put an asterisk on that amendment as part of his crackdown on immigration. But before then, the Trump administration is asking the justices to resolve an unusual procedural...