Which is clearly illegal.

Congress would need to declare any official language(s). Moreover, by treaty and law (NALA of 1990) obligations to Native American tribes there must be more languages than merely English.

▲

naturalmovement 5 hours ago | parent [-]

[flagged]

	▲	cguess 5 hours ago \| parent [-]
		This one actually certainly is, it just hasn't shown up in court because no one's dumb enough to enforce it. The Constitutional Convention discussed a national language at length in 1789, and adamantly didn't include a language requirement on purpose.