10:35 PM PT
A judge has refused to stop Arizona Governor Jan Brewer's policy denying driver's licenses for young immigrants who have gotten work permits under an Obama administration policy.
The decision rejects the argument by immigrant rights advocates who say her policy is unconstitutional because it's trumped by federal law.
Last summer, the Obama administration took steps to shield thousands of young immigrants from deportation.
Arizona's refusal to view those in the deferral program as legal residents has become the most visible challenge to the program the president announced in June.
Brewer's lawyers asked for the lawsuit challenging her policy to be dismissed.