arpaio revels in his reputation as a tough guy. >> i'm turning off certain activists that don't like what i'm doing. i'm probably turning off some employers who hire illegal aliens for the cheap payment, money. so, i turn off some people. you know what? i serve the 4 million people that live here. >> reporter: on the day part of the new immigration law went into effect, arpaio and his department went on a crime sweep. deputies driving into the city's neighborhoods. in this case, pulling over a mexican-american driver for a an expired registration tag. because he had a proper license, though, he was only ticketed, not taken into custody. this man, though, wasn't as fortunate. so, they arrested you for not having all the registration? >> yes. >> reporter: did they ask you if you were -- >> huh? >> reporter: did they ask if you were legally in this country? >> they didn't ask me that. they just -- nothing. get me out of the car here on 35th in the middle of the street right here. >> reporter: are you legally in this country?