The New York Police Department Hispanic Society endorsed Mayor Bloomberg for re-election yesterday at City Hall Park. But what was supposed to be a routine campaign endorsement turned into a turf battle when the executive chairman of a rival group, Anthony Miranda of the National Latino Officers Association, showed up and criticized both the Hispanic Society and the mayor.

Both groups claim large memberships: 12,000 for the Hispanic Society and 10,000 for the NLOA.

Mr. Miranda’s group said his organization, not the Hispanic Society, represents Hispanic police officers. He said the society is more interested in “social events and getting favors” than advocating for its members. He also said the society’s leaders had been rewarded with cushy jobs in the Bloomberg administration – a charge the Bloomberg camp denies.

“For an organization to come out here and claim that they represent Hispanic law enforcement officers or police officers, I find that totally offensive,” Mr. Miranda said. “They do not represent the majority of law enforcement officers, they don’t represent general police officers, and they don’t represent Hispanic police officers.” Mr. Miranda said the endorsement was “offensive” because, as he put it, the mayor had not supported union workers, such as teachers and police officers.

In 2001 Mr. Miranda’s group endorsed Mr. Bloomberg in the general election. Now, however, the group says the Democratic mayoral front-runner, Fernando Ferrer, a former Bronx borough president, is a “better candidate.”

The head of the Hispanic Society, Pablo Dejesus, said Mr. Bloomberg deserved the endorsement over Mr. Ferrer, who is of Puerto Rican descent.

“This organization doesn’t base its endorsements on a person’s ethnicity,” he said. “Based on what has been done since 9/11, we support Mayor Bloomberg.”

He said his group is a mainstream organization that represents the majority of Latino officers.

“We’re not a splinter group,” he said. “We’re the original organization that was founded in 1957.”

Later in the day, Mr. Bloomberg’s campaign spokesman, Stuart Loeser, said the charge that the administration gave Hispanic Society leaders special treatment is “completely untrue.” He also said the society is the only Latino fraternal organization comprised entirely of NYPD officers.

“Mr. Miranda should know very well that endorsing Mike Bloomberg does not get you any special favors,” Mr. Loeser said, “because Mr. Miranda himself sought two high-ranking jobs within the NYPD after he endorsed Mike Bloomberg and didn’t get either of them.”

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Tens of thousands of glossy campaign fliers picturing one of the Democratic mayoral candidates, Rep. Anthony Weiner, will be placed in mailboxes citywide by the end of the week.

The fliers, which picture Mr. Weiner with children, union workers, and his political mentor, Senator Schumer, are phase one of a “vigorous targeted mail plan,” Mr. Weiner’s spokesman, Anson Kaye, said.

The mailings will focus on Mr. Weiner’s efforts to create better schools, affordable health care, lower taxes, and less waste at City Hall. The full-color pamphlet outlines Mr. Weiner’s goals and asks for campaign donations and volunteers.

The mailing comes less than a week after another Democratic mayoral candidate, C. Virginia Fields, sent out a campaign mailing of her own, and amid questions about the cost of a series of mailings from the City Council that prominently feature a third candidate, the council speaker, Gifford Miller.

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Friction between Ms. Fields and Mr. Miller heated up yesterday over a bill that would give domestic partners the same protection against discrimination as married couples. Known as Intro. 22, the bill would also increase the existing $50,000 cap on damages for victims of discrimination.

Mayor Bloomberg has objected to the bill and argued that it would increase litigation against the city. Ms. Fields, who stood with the bill’s sponsor, Council Member Gale Brewer, criticized Mr. Bloomberg for objecting to the bill and Mr. Miller for not bringing it to the council for a vote. A spokesman for Mr. Miller, Stephen Sigmund, dismissed Ms. Fields’s call for action as political opportunism. He said the bill, which has been languishing since it was introduced more than a year ago, would be brought to a vote next month.

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The Log Cabin Club of New York City and the national president of the Log Cabin Republicans, Patrick Guerriero, endorsed Mayor Bloomberg last night in his bid for re-election.

The group, which is composed of gay Republicans, said Mr. Bloomberg fought for equal rights when he was in the business world and continued to do so when he was in City Hall.

“The diversity of New York City is its greatest strength,” Mr. Guerriero said.