PHOENIX (AP) - An Arizona law requiring residents to show proof of citizenship in registering to vote and ID at the polls has been upheld by a federal judge.

U.S. District Judge Roslyn Silver rejected claims by Latino and Native American advocacy groups that the law constitutes a poll tax and disproportionately impacts minority voting. Silver noted the state's interest in preventing voter fraud.

Silver had taken the case under advisement following a 6-day trial that ended July 18.

At issue were combined lawsuits challenging requirements mandated when voters approved Proposition 200 on the state's 2004 general election ballot.

The law requires voters to produce specified types of ID when casting ballots and to provide proof of citizenship when registering to vote either for the first time or in a different county.

This video is from, broadcast August 21, 2008.

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