HONOLULU -- U.S. Rep. Neil Abercrombie said Honolulu Mayor Mufi Hannemann is attacking his campaign for governor.

The two men are expected to face off in next year's democratic primary for governor.

Abercrombie said he is upset that Hannemann's campaign committee filed a petition with the state Campaign Spending Commission.

The complaint asks the commission to block a transfer of $900,000 in campaign funds from Abercrombie's congressional race to the governor's race.

Abercrombie said he already requested a ruling.

"I'm trying to obey the law. I'm trying to take proper procedures and he's acting as if I wasn't doing it. It's an attack on my personal integrity," Abercrombie said.

"As lawyers, we made the decision that we needed to protect our client's rights," Hannemann campaign committee attorney Lex Smith said.

Federal regulations are very different then the state's and often allows larger contributions, the Hannemann campaign said.

The commission is expected to issue a ruling next week.

If it goes against Abercrombie, it would give Hannemann an $800,000 advantage in campaign funds.