evidence: Several Republican-led states have recently publicized new processes to identify and remove noncitizens from the voter rolls, though those efforts have often ensnared naturalized citizens. [...] States are required by federal law to maintain their voter lists and remove ineligible people. But it must be done carefully to avoid disenfranchising eligible voters. Federal law also restricts systematic voter purges within 90 days before an election. [...] Huddleston, an attorney with the group, said past data from the Texas secretary of state’s office suggests the majority of the 6,500 potential noncitizens who were removed likely refers to people whose registrations were canceled after they did not respond to a notice inquiring about their citizenship.