Two federal court hearings in Phoenix ended Thursday without a ruling on whether the state's new immigration law should take effect amid a flurry of legal challenges against the crackdown.

A federal appeals court Tuesday spurned a request by civil rights groups for a new injunction to once again block Arizona's 2010 immigration law.

The “papers please’’ provision of Arizona’s SB 1070 is now in effect.

A federal judge peppered attorneys fighting over the legality of Arizona's new immigration law with questions about their assumptions of what the law means.

The judge who will decide whether Arizona's new immigration law is constitutional hasn't indicated whether she'll put the statute on hold before it takes effect next week and had some poignant questions Thursday for challengers at two court hearings.

A federal appellate court struck down a local ordinance in Pennsylvania aimed at illegal immigrants, potentially boosting the chances civil rights and business groups will be able to kill Arizona’s employer sanctions law — and potentially the state’s new immigration law.