Section 203 of the Voting Rights Act because it found that "through the use of various practices and procedures, citizens of language minorities have been effectively excluded from participation in the electoral process."
Section 203 requires locations that have a population of more than 5 percent of non-English speakers to provide multilingual ballots.
While King is correct that citizenship applicants are required to take naturalization tests in English, exemptions are possible for older people and those with mental and physical disabilities. It is also not unusual for natural-born citizens with immigrant parents and Native Americans to not speak English as their primary language.
(h/t: NBC News)