Name of Mexico to the formation of the Mexican Republic which formally is known as the United Mexican States. Complications arose with the capital's former colloquial and semi-official name "Ciudad de Mexico, Distrito Federal (Mexico, D.F.)", which appears on postal addresses and is frequently cited in the media, thus creating a duplication whereas the shortened name was "Mexico, D.F., Mexico". Legally, the name was Distrito Federal (Federal District or District of the Federation). This ended with the change in statute of Mexico City into a state in 2016. Today it is officially called "Ciudad de México, México" abbreviated CDMX, Mexico. The official name
Arizonans for Official English v. Arizona v. Bozanich, 397 U.S. 82, 86-87, 25 L. Ed. 2d 68, 90 S. Ct. 788 (1970), nor may they adjudicate challenges to state measures absent a showing of actual impact on the challenger, see, e.g., Golden v. Zwickler, 394 U.S. 103, 110, 22 L. Ed. 2d 113, 89 S. Ct. 956 (1969). The Ninth Circuit, in the case at hand, lost sight of these limitations. The initiating plaintiff, Maria-Kelly F. Yniguez, sought federal-court resolution of a novel question: the compatibility with the Federal Constitution of a 1988 amendment to Arizona's Constitution declaring English "the official language of the State of