Running on the Conservative Party line, James L. Buckley won election to the U.S. Senate in 1970 and served for one term.

A key consideration was New York's fusion voting, unusual among U.S. states, which allows individual candidates to appear on multiple party lines in the same election.

"[2] In 1966, Conservative candidate Paul L. Adams obtained more than half a million votes in his race for Governor of New York,[4] winning Row C for the Party.

[7] According to the New York Post, "Buckley's victory cemented, for a time, an electoral coalition of urban, ethnic Democrats with rural and suburban Republicans—all disgusted with excessive taxation, runaway government spending and the decline of traditional values.

"[5] In 1976, Buckley ran for reelection to the U.S. Senate as the candidate of the Republican and Conservative parties, losing to Democrat Daniel Patrick Moynihan.

[8] In 1978, registered Conservative William Carney, a member of the Suffolk County legislature, was elected to the United States House of Representatives in New York's 1st congressional district, a long-time Democratic stronghold on Long Island, after winning the Republican primary and running on both party lines.

[10] In 1980, the Conservative Party endorsed Al D'Amato in a U.S. Senate race in which he successfully challenged incumbent Sen. Jacob Javits in a Republican primary.

[12][13] In the 1982 gubernatorial election, the party nominated Republican Lewis Lehrman,[14] who was narrowly defeated by Democrat Mario Cuomo.

[20] London ran a strong campaign statewide and finished one percentage point behind Rinfret, while Democratic Governor Mario Cuomo easily won re-election.

[29] In the 2006 race for governor, Conservative Party Chairman Michael Long endorsed John Faso, the former Assembly Minority Leader and Republican State Comptroller nominee in 2002.

"[37] On October 31, 2009, Scozzafava suspended her campaign,[38] leading prominent Republicans such as national chairman Michael Steele to endorse Hoffman.

[40] The 2009 special election received significant national attention, and was alternately described as "a referendum on President Barack Obama" and "a fight over the identity of the Republican Party.

"[43] In addition, elected officials and observers opined that the congressional race affected the New York State Senate's December 2, 2009 vote against same-sex marriage legislation.

[44][45] Party Chairman Michael Long endorsed Rick Lazio for the 2010 New York gubernatorial election and directed his allies to do the same.

[47] Lazio dropped out of the race on September 27, requiring a vacancy committee to convene and select a replacement for him on the Conservative line.

Alesi did not seek re-election in 2012,[54] while Grisanti, McDonald, and Saland faced challengers in 2012 who received the Conservative Party's endorsement.

[63] On April 13, 2018, the Conservative Party executive committee selected Marcus Molinaro as its candidate in the 2018 gubernatorial election in what Long termed a "not very easy" decision; the party chose Molinaro over Deputy State Senate Majority Leader John A. DeFrancisco and openly refused to consider Erie County Executive Joel Giambra.

[78][79] On August 17, 2024, the Conservative Party nominated eventual winner Donald Trump for President of the United States.

[80][81] On September 30, 2024, Gonzalo Duran, Vice Chairman of the Bronx Conservative Party, expressed interest in running for Mayor of New York City.