[6] The closest race occurred in New York's 1st congressional district, where Republican candidate Randy Altschuler did not concede to Democratic incumbent Congressman Tim Bishop until December 8.

[6] Results of the 2010 United States House of Representatives elections in New York by district:[8] Democratic, Working Families and Independence incumbent Tim Bishop was challenged by Republican and Conservative Party nominee Randy Altschuler, a local businessman.

[9] In the Republican primary, Altschuler won against George Demos, an attorney and prosecutor who worked on Bernard Madoff's case.

Republican, Conservative, Independence and Tax Revolt Party incumbent Peter T. King ran for reelection, challenged by Democratic nominee Howard Kudler.

Democratic and Working Families incumbent Carolyn McCarthy was challenged by Republican, Conservative, Independence and Tax Revolt Party nominee Fran Becker.

The district, which stretched from eastern Queens across the Town of North Hempstead, was historically Democratic, and Ackerman won the general election on November 2, 2010.

Democratic incumbent Gregory Meeks ran for reelection, challenged by Republican and Conservative Party nominee Asher Taub.

Democratic and Working Families incumbent Jerry Nadler ran for reelection, challenged by Republican and Conservative Party nominee Susan Kone.

Democratic and Working Families incumbent Yvette Clarke ran for reelection, challenged by Republican and Conservative Party nominee Hugh C. Carr.

Democratic and Working Families incumbent Nydia Velazquez ran for reelection, challenged by Conservative Party nominee Alice Gaffney.

Rangel, who had served the Harlem-area district since 1971, faced a primary challenge from Adam Clayton Powell IV,[33] Vincent Morgan[34] and labor activist Jonathan Tasini.

Democratic and Working Families incumbent Jose Serrano ran for reelection, challenged by Republican and Conservative Party nominee Frank Della Valle.

Democratic and Working Families incumbent John Hall ran for reelection, challenged by Republican, Conservative and Independence nominee Nan Hayworth.

[48] Murphy had won a 2009 special election for the seat which was called after Kirsten Gillibrand was appointed to the United States Senate in January.

Democratic and Working Families incumbent Bill Owens ran for reelection, challenged by Republican and Independence nominee Matt Doheny.

[21] Conservative Party nominee Doug Hoffman, who lost to Doheny in a Republican primary, was also on the ballot, but he suspended his campaign on October 5, 2010.

Tim Pawlenty, and former New York Governor George Pataki endorsed Hoffman instead of Scozzafava, who had been picked by Republican county chairs.

[citation needed] The Libertarian Party of New York backed 25-year-old Ernest Logan Bell [21] and headed a petition drive to get him onto the ballot.

†Internal poll for Arcuri campaign Democratic and Working Families incumbent Dan Maffei ran for reelection, challenged by Republican, Conservative and Independence Party nominee Ann Marie Buerkle.

In the Republican primary, Buerkle defeated farmer and government reform advocate Mark Bitz and local leader Paul Bertan.

[7] Republican, Conservative and Independence Party incumbent Chris Lee ran for reelection, challenged by Democratic nominee Philip A. Fedele.

Rowland, a dentist, was originally mentioned as a candidate for Higgins's seat, but was persuaded by a faction of the party led by Rus Thompson to run against Slaughter instead.

Fred Smerlas, a former Buffalo Bills defensive tackle who currently resides in Massachusetts, had expressed an interest in returning to Western New York to challenge her,[82] but later stated that he would not do so this election cycle.

[citation needed] On March 3, 2010, incumbent Democrat Eric Massa announced that he would retire following reports that he had suffered a recurrence of cancer and allegations of sexual harassment.

Monroe County executive Maggie Brooks, state senator Catharine Young and Kuhl himself publicly acknowledged they were considering running, but all three backed Reed.

Zeller, who was largely unknown until his selection, did not live in the state of New York, but claimed to be a "native" of several towns ranging from Rochester to the Southern Tier.

[87] Shortly after Massa's departure, Rothenberg and CQ shifted the race to a toss-up and Cook moved it into the "Lean Republican" category.