The New York State Republican Party has initiated an advertising campaign aimed at attracting Jewish voters, simultaneously accusing Democrats, including Mayor Zohran Mamdani, of promoting or condoning antisemitism. The campaign features an open letter from State GOP Chairman Ed Cox, published in Jewish media outlets and on social media platforms frequented by Jewish New Yorkers.

In the letter, Cox states the Republican Party's unequivocal support for the Jewish community, referring to Israel as a "democratic miracle" and "America’s indispensable ally." He asserted that the party stands against antisemitism, recognizing the contributions of Judaism to Western civilization.

Mamdani and other Democratic leaders are directly criticized by Cox for what he describes as their role in the Democratic Party's "spiral into that ugliest and oldest hatred, anti-Semitism." He specifically cited Mamdani's comments calling the American Israel Public Affairs Committee (AIPAC) and its members "monsters" as an example of "the worst kind of antisemitism" inappropriate for American political discourse.

Cox also targeted Governor Kathy Hochul and House Democratic Minority Leader Hakeem Jeffries for endorsing Mamdani's mayoral campaign. He also called out Senate Democratic Minority Leader Chuck Schumer, who is Jewish, for remaining silent on the issue.

The Republican Party chairman declared his party's solidarity with AIPAC in its efforts to strengthen U.S.-Israel relations and combat antisemitism, which he claimed has found a foothold within the Democratic Party and is championed by New York City's mayor.

Cox claimed that Jewish individuals are leaving the Democratic Party in large numbers, stating, "From Maine to Michigan to New Jersey to right here in New York, you are told you are no longer welcome." He extended an invitation to Jewish voters, saying, "Please know that, unlike the Democratic Party, the New York State Republican Party values you and would be proud to have you among our ranks. You have a home with us."

Mamdani and his allies, affiliated with the Democratic Socialists of America, are known critics of Israel. The mayor reportedly supports the boycott, sanctions, and divestment campaign against Israel, which the Anti-Defamation League has identified as a form of antisemitism. Three House candidates backed by Mamdani, who won Democratic primary elections, have accused Israel of genocide in Gaza.

Supporters of Mamdani and other critics maintain their stance is pro-Palestinian criticism of Israel, not antisemitism. However, reports indicate the mayor does not support the existence of Israel as a Jewish state.

Mamdani's campaign for mayor has been a focal point for discussions regarding his stance on Israel and the broader debate on antisemitism within the Democratic Party.