Aug. 28: Where the Candidates Are Today Participates in the first official debate of the Republican primary, held at the CUNY Graduate Center on Fifth Avenue. The debate is broadcast on CBS 2, WLNY 10/55 and 1010 WINS. Since his arrest on July 10 protesting the impending closing of Long Island College Hospital, Mr. de Blasio has been omnipresent on the campaign trail, second only to the frenetic John C. Liu in campaign appearances over that time span. But since Monday, as his mayoral rivals have substantially increased their public appearances with two weeks of campaigning remaining before the Democratic primary on Sept. 10, Mr. de Blasio has made only four public appearances in his quest to become mayor. He continues his quiet streak on Wednesday with only one public appearance, a news conference outside Brooklyn Borough Hall to outline what he believes are the Bloomberg administration's failures - and by extension, Christine Quinn's failures - to improve pre-kindergarten programs throughout the city. Greets morning commuters at the Briarwood-Van Wyck subway station, on Main Street and Queens Boulevard in Queens. Visits with senior citizens at the Rochdale Village Community Center, the first of four senior centers in Queens he intends to visit on the day. Visits with senior citizens at the Institute for Puerto Rican/Hispanic Elderly Corona Senior Center, the second of four senior centers in Queens he intends to visit on the day. Visits with senior citizens at the Florence E. Smith Senior Center, the third of four senior centers in Queens he intends to visit on the day. Visits with senior citizens at the Taiwanese American Senior Center, the fourth of four senior centers in Queens he intends to visit on the day. Greets afternoon commuters, at the Woodhaven Boulevard M train subway station on Queens Boulevard in Queens [ap]. Celebrates Lord Krishna's birthday by marching in a Shobha Yatra parade, starting at the Hindu Center on Kissena Boulevard in Queens. Attends Harlem Week's "Thank You" gala and reception, at Harlem Hospital on West 136th Street. Mr. Liu attended seven Harlem Week events over the past month, more than any of his rivals. Attends the 16th Annual Pride Democrats" Candidates Forum, at the New York City LGBT Center on West 13th Street in the West Village. Attends a candidate forum hosted by Street Hype, a community newspaper based in Brooklyn, at St. Gabriel's Episcopal Church in Brooklyn. Is one of three mayoral candidates to speak at the Bronx Young Democrats" Candidates Meet and Greet, at the Bronx Alehouse on West 238th Street. 9:10 p.m. Attends the Queens County Young Democrats" seventh annual Summer Bash, at Sidetracks Restaurant and Lounge on Queens Boulevard in Queens. Greets morning commuters at the Spuyten Duyvil Metro North station, in the Bronx. Visits with senior citizens, at Hebrew Home in Riverdale. As John C. Liu, William C. Thompson Jr. and Anthony Weiner make multiple visits to senior centers on the day, Ms. Quinn holds a news conference outside Riverdale Senior Services in the Bronx to unveil her plan to help the city's aging population within the first 100 days of the Quinn administration, including introducing new infrastructure improvements to help seniors, doubling funding to help prevent unnecessary evictions, and more. Helps to distribute food to the needy, in preparation for the Jewish New Year, along with Councilwoman Karen Koslowitz, Councilman James Gennaro and other elected officials, at the Tomchei Shabbos of Queens on Metropolitan Avenue in Queens. Greets morning commuters at the Utica Avenue subway station, in Brooklyn. Holds a news conference with Councilman Erik Martin Dilan, who endorsed him on June 23, to outline his plans to give parents a greater voice in education policy in the future, outside J.H.S. 302 on Linwood Street in Brooklyn. Visits senior citizens at the Cypress Hill-Fulton Street Senior Center, the first of three senior centers in Brooklyn he intends to visit on the day. Mr. Thompson will be joined by Councilman Erik Martin Dilan and Assemblyman Rafael Espinal, who endorsed him on June 23. Visits senior citizens at the Glenmore Plaza Senior Center, the second of three senior centers in Brooklyn he intends to visit on the day. Councilman Dilan and Assemblyman Espinal join him again. Visits senior citizens at the Eileen Dugan Senior Center, the last of three senior centers in Brooklyn he intends to visit on the day. Participates in a walking tour with Representative José E. Serrano, who endorsed him on May 2, starting on East Fordham Road in the Bronx. Visits with senior citizens at the Dorchester Senior Center, in Ditmas Park, Brooklyn. Visits with senior citizens at the Albany Senior Center, in Crown Heights, Brooklyn. Greets afternoon commuters, at the Fordham Road B/D train subway station on Grand Concourse in the Bronx. Is one of two mayoral candidates to address the Neponsit Property Owners Association at its general meeting, at the Belle Harbor Yacht Club on the Rockaways. Greets morning commuters, along with his wife, Lorraine, at the 71st Street D train subway station on New Utrecht Avenue in Brooklyn. Is the only candidate scheduled to appear at the Jewish New York Government Outreach's forum, at Young Israel of Kew Gardens Hills in Queens. Holds a rare news conference on the steps of City Hall to rally against what his campaign says is discrimination by Quinnipiac University for failing to include him in its recent polling of Democratic mayoral candidates. Mr. Salgado, a Latino, filed a lawsuit earlier this month against Quinnipiac University to push for the inclusion of all "candidates qualified to participate" in any future polling released to the public. Marist College and Siena College (whose polling for the mayoral race is performed in collaboration with The New York Times) both have Mr. Salgado in sixth place among Democrats in their most recent polling with roughly two percent of the vote, ahead of former Councilman Sal F. Albanese, who is routinely included in the Quinnipiac poll.