If they document the "undocumented" illegal aliens sanctuary cities will be able to commit even stronger voter fraud.
https://www.oathkeepers.org/scotus-d...ments-purpose/
“A unanimous Supreme Court ruled Monday that illegal immigrants and other noncitizens can be counted when states draw their legislative districts, shooting down a challenge by Texas residents who said their own voting power was being diluted,” The Washington Times reported."
"As the number of US House seats is fixed at 435, reapportionment means that if a given state gains a House district, another state must lose one. If (illegal alien non-citizens are counted in the decennial Census upon which districts are apportioned, then states with larger illegal alien populations are likely to end up with more districts and therefore more representation in the House. This effectively dilutes the votes of citizens in states having relatively low populations of illegal aliens."