On May 12, 2005, the Arizona State Legislature passed two bills restricting illegal immigrants' access to adult education classes, child care assistance, in-state tuition at public universities, and employment centers. Supporters of the bills claimed that Arizona's public resources were being drained by the thousands of Mexican immigrants who illegally enter the state every year. The bills' passage followed Arizona voters' approval of Proposition 200 in November 2004, which requires proof of citizenship in order to receive public benefits. Seven years after the legislation's passage, Arizona defended another controversial immigration regulation, SB 1070, from a constitutional challenge in the Supreme Court in April 2012.
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