“A next potential front in the redistricting war could involve who is counted for state legislative districts.

For decades, mapmakers have generally drawn the districts that state lawmakers represent based on the total number of people living in an area. But Republican officials in some states have called for using a narrower population: only “eligible voters.”

Some advocates of this form of redistricting have interpreted it to mean leaving out non-U.S. citizen adults and all children. Only adult citizens would count, including those who, in some states, are not eligible to vote because of a felony conviction or their mental incapacity.”