The justices face so-called legitimacy dilemma as they deal with a tricky legal dispute and a president who has made clear he would view defeat as a personal insult.

Good moral character” is one of the qualities required to become a US citizen and has been since the 1790 Naturalization Act.

The revised test will apply only to naturalisation applications filed on or after October 20, 2025, according to a Federal Register notice published on September 18 ...