Obama administration tries to stop local police from arresting illegal aliens
The sheriff's sweeps in some heavily Latino areas of metro Phoenix have drawn criticism that Arpaio's deputies racially profile people. Arpaio said people pulled over in the sweeps were approached because deputies had probable cause to believe they had committed crimes and that it was only afterward that deputies found many of them were illegal immigrants.
The U.S. Department of Justice is investigating Arpaio's office over allegations of discrimination and unconstitutional searches and seizures.
Arpaio said the Bush administration had no complaints about his use of the special federal powers, but all that has changed with the Obama administration.
"What's changed?" Arpaio asked. "Politics has changed, because they don't like us going on the streets to catch illegals."
This round of sweep, Arpaio's 12th, is set to end late Saturday.