 In 2005, he co-sponsored a bill with Ted Kennedy that would expand use of guest worker visas.McCain campaigned against Proposition 200, a 2004 Arizona state initiative intended to prevent illegal immigrants from voting, receiving welfare benefits, and mandated state agencies to report illegals to the federal government.McCain argued Prop 200 would be overly expensive to execute, that it would be ineffectual, and that immigration regulation falls only under the purview of the federal government.