The Maricopa County Elections Department plans to spend $30,000 for television and print ads to correct possible misperceptions among some Spanish-language voters about the date for the Nov. 6 general election.
Elections spokeswoman Yvonne Reed says incorrect dates on some materials printed in Spanish added to a general feeling that some Spanish-language voters may not be aware of the correct date. The department expects ads to begin running by Saturday.
Reed says Friday's announcement by County Recorder Helen Purcell was made with various Latino activist groups, who will also remind voters of the Nov. 6 date.
"I think we've all talked about the error -- what we're here to talk about today is what we're going to do about the error," said Purcell.
It's an aggressive campaign, fighting for air time with political ads 11 days before election day.
"I think this campaign shows that we want to do something about that error," Purcell added.
Some liberal activists had accused Purcell of trying to suppress the Hispanic vote.
She says the misprint was not intentional and her office is launching an investigation to find out how the mistake was made.
"And I feel very badly that it was made, but we've got to do something to solve that -- we've got just a few days left before the election."
Latino leaders say they are satisfied with the outreach campaign and feel it was an honest mistake.
"I think what happened here is that there was a little bit of -- things going too quickly, things were missed and this is why we have this mistake," said Lydia Guzman of Citizens for a Better Arizona.
The county distributed about 2,000 promotional bookmarks with the wrong date and at least one voter-ID card with an incorrect date.
The Associated Press contributed to this report.