Omaha, NE - The Omaha Police Union is upping the rhetoric in the mayoral race.

The Union is blasting candidate Jim Vokal and Omaha City Councilman Frank Brown.  It is circulating a flier to voters that claims both lawmakers are soft on sex offenders.

Aaron Hanson, the President of the Police Union talked with Action 3 News.  "Frank Brown and Jim Vokal voted to strip the portion of the ordinance that would have allowed Omaha Police officers to monitor high-risk sex offenders in our neighborhoods," Hanson says.

"It is a mistruth and it's a lie," says Councilman Frank Brown.  "It's a little early to be doing mudslinging.  They shouldn't be doing mudslinging at all."

Councilman Jim Vokal spoke to Action 3 News about the issue.  He calls the flier retaliation on the Union's part because he opposed the pension offer the union made to the city.