The battle over Arizona's immigration law is heating up following a judge's ruling this week.
The sheriff of Maricopa County is conducting immigration sweeps, despite a court-ordered hold on the new immigration law.
Sheriff Joe Arpaio says he's enforcing two other state immigration laws.
Thirteen people were arrested yesterday on warrants and other criminal charges.
A federal judge's ruling wednesday put parts of the law on hold, but lawyers for Arizona's governor have gone to court to
overturn the ruling.