The executive secretary of the Queens County Democratic Party, Michael Reich, said he has received between 50 and 75 calls within the past week from elected officials, political operatives, and candidates.

All were calling to talk about the same thing: endorsements in this year’s elections for local and citywide office, on which the organization is scheduled to vote Monday.

Last night Democrats hoping to unseat Mayor Bloomberg made a last-ditch attempt to steer the vote for the mayoral endorsement in their direction.

During a fund-raising event at the famed Queens restaurant Antun’s, the speaker of the City Council, Gifford Miller, and the borough president of Manhattan, C. Virginia Fields, worked a room of more than 400 guests and took turns addressing the crowd from the podium.

Mr. Reich said the Queens party leader, Thomas Manton, a former member of Congress, has talked to and met with all four mayoral candidates several times within the past month.

Mr. Manton, he said, was still “taking the pulse” of the county’s 78 district leaders and had not yet decided whether there was enough of a consensus to include the mayoral endorsement vote on Monday’s agenda.

Mr. Reich denied rumors that the party was leaning toward any candidate. The three candidates actively seeking the party endorsement – Mr. Miller, Ms. Fields, and a former borough president of the Bronx, Fernando Ferrer – are all worthy candidates and friends, he said. Mr. Ferrer was scheduled to attend last night’s event but was not spotted. Nonetheless, sources, who declined to be identified, said he had supporters working the room for him, including his top adviser, Roberto Ramirez.

The fourth candidate, Rep. Anthony Weiner, whose district includes parts of Queens and Brooklyn and who lives in Queens, was in Washington voting on legislation. His spokesman, Anson Kaye, said that while the congressman was looking for support from all city residents, the political organizations were not part of his campaign “strategy.”

Mr. Weiner has tried to bill himself as an insurgent running without the support of political machines. One of his opponents, Mr. Miller, mocked that characterization at a debate last week, saying he had seen Mr. Weiner courting support from political clubs. Not winning that support, Mr. Miller said, did not mean Mr. Weiner was an outsider, only that he hadn’t won that support.

Political consultants said yesterday that the pull of the Queens Democrats could not be overestimated.

An axiom of city politics, a Democratic consultant, Evan Stavisky, said, is that “the Queens County Democratic organization is one of the most unified, one of the most disciplined, and one of the most effective political organizations in the state.”

Mr. Stavisky said the endorsement would be a “shot in the arm” for any of the Democrats vying for the party’s nomination to take on Mr. Bloomberg in November’s general election.

“Whoever receives the endorsement is getting one of the most coveted endorsements of the season,” he said. “From start to finish, from soup to nuts, any serious candidate for citywide office would love to have this endorsement.”

Clearly, the mayoral hopefuls agree. Several elected officials from Queens, who did not want to be named, said they had been contacted this week by the mayoral candidates looking for support and pull with county leaders.

The organization may or may not decide Monday, but elected officials said they believe the decision will be made by Wednesday at the latest. That is because candidates for all city offices may begin circulating petitions and collecting signatures June 8 to qualify for a spot on the ballot in September’s primary.

The county committee generally makes its decision before then, with at least enough time to print petitions that include the names of the candidates it is backing for say, City Council, or mayor. That way party workers can collect signatures for both at once.

Even Mr. Reich pointed out that with Memorial Day weekend coming up, petitions would have to be printed soon.

Several others seeking elective office also attended at last night’s $300-a-plate event, including four men who would like to win next year’s nomination for state attorney general: Mark Green, Andrew Cuomo, Michael Gianaris, and Charlie King.

A number of the council members looking to replace Mr. Miller as speaker were also there. Queens has historically delivered support from its council members in a bloc that determines the speaker and, in exchange, allows its delegation to retain plum committee chairmanships.

Meanwhile, the Staten Island Democratic Party opted Wednesday night not to endorse anyone in the mayoral primary.

“Rather than split the local organization, we’re just going to leave it open so that everyone can support the candidate that they wish to,” the county chairman, Assemblyman John LaVelle, said yesterday during a brief phone interview.

The Brooklyn Democratic Party has announced its support for Mr. Miller, though elected officials within the borough are seemingly split. The Bronx is widely expected to back Mr. Ferrer, its home candidate and Manhattan tends to center more on its myriad political clubs than on the county’s backing.