A new poll says Maricopa County Sheriff Joe Arpaio's approval rating declined over the last 18 months.
The poll released Thursday by the Behavior Research Center found 37 percent of those were surveyed approved of Arpaio.
Twelve percent say Arpaio was doing a fair job.
Another 42 percent disapproved of the sheriff.
The poll of 418 heads of households in Maricopa County was taken between July 8 and July 21 and has a sampling error of plus or minus 4.8 percentage points.
Arpaio won his sixth term last year in his second-closest election.
A January 2012 survey by the Behavior Research Center found 49 percent of those surveyed approved of Arpaio, while 15 percent said he was doing a fair job and 32 percent disapproved of the sheriff.
The Arpaio campaign sent this e-mailed response to the poll:
The Arpaio campaign finds the latest “poll numbers” from Behavior Research Center a bit suspect. The poll, which unbelievably took them two weeks to complete, was not conducted with likely voters, but simply with members of the “public.” This is the same firm that releases poll numbers every year declaring dire consequences for the Sheriff. Yet, the Sheriff continues to be re-elected and based on all other legitimate survey results remains a very popular figure both in Maricopa County and around the state.