Appeals court upholds Arizona's voter ID requirement | Fox News
Looks like the case was heard EN BANC meaning all the judges heard the case rather than the normal panel of 3 judges:
A 12-member panel of the 9th Circuit Court of Appeals says in a ruling Tuesday that there was evidence Arizona has racially polarized voting and a history of discrimination against Latinos.
But the court concluded that no proof was offered to show that the ID requirement gave Latinos fewer opportunities to vote.
The court, however, found that the federal National Voter Registration Act trumps another section of the Arizona law that requires people to prove their citizenship in order to vote.
Caveat-I am guessing on this since I don't know off the top how many judges are on the 9th Circuit
second Caveat-the Ninth circuit is the most overruled Circuit in the USA by the Supremes