Supreme Court Building

Did Arizona go too far requiring people to prove citizenship when registering to vote? The Supreme Court just heard that case.

FOX News Radio's Jared Halpern reports from Washington:

The federal voter registration form simply requires you affirm, with a signature, you're a U.S. citizen. A requirement Arizona argues falls short.

(Horne) "The signature doesn't mean anything. We need evidence that the person is a citizen."

Arizona Attorney General Thomas Horne defending a state law requiring just that. A number of minority groups challenging the extra scrutiny.

(Peralas) "Often sensitive, personal documents like birth certificates and passports."

Nina Peralas with Mexican American Legal Defense Fund argues Arizona cannot ask more of its voters than the federal government.

The Justices seem split on if the federal law goes far enough. A ruling expected by June.

In Washington, Jared Halpern, FOX News Radio.