US Sen. Cory Booker Refuses to Endorse Zohran Mamdani for NYC Mayor

US Sen. Cory Booker (D-NJ) declined to endorse New York Assemblymember Zohran Mamdani in his bid for New York City mayor, underscoring a simmering divide within the Democratic party over whether to embrace the anti-Israel politician.

Booker, a former presidential candidate known for his progressive rhetoric and background in community activism, has often walked a careful line when it comes to the party’s internal divisions. When asked last week by CNN reporter Manu Raju whether he would support Mamdani, a far-left democratic socialist, Booker said, “I have learned a long time ago, to let New York politics be New York politics. We have enough challenges in New Jersey.”

Citing heated gubernatorial and legislative races, Booker said his energy will be devoted to his home state of New Jersey before adding, “New York City, I love you. You’re my neighbor. You’re about 10 miles from where I live. You guys figure out your elections. I’m going to be focused on mine.”

Booker’s response came after he dodged an initial question from Raju asking if the senator would support Mamdani, who won the New York City Democratic mayoral in June.

“So, you and I are going to have this conversation, and I’m going to say to you one day, I told you so,” Booker responded. “This is not a left-right issue. It really isn’t. It is an authoritarian, versus people who want pragmatic government that makes a difference in the lives of the American people. I’m one of these people that says the lines that divide us in America are not nearly as strong as the ties that bind us.”

“Big corporations, people want to keep our eyes on the screen, want to pit us against each other and tell us how much we should hate each other,” he continued. “I’m sorry, the left-right lens is not the right lens to look at this right now. Right now, it is, can we get back to the pragmatic work of governing?”

Booker’s refusal to endorse Mandani reflects broader tensions within the Democratic party over the rising influence of its far-left, progressive wing, particularly among younger lawmakers who have been outspoken critics of US military aid to Israel. Mamdani, a member of the Democratic Socialists of America, has drawn national attention for his calls to end what he describes as unconditional support for the Israeli government, a position that has attracted both praise from progressive activists and backlash from pro-Israel groups and establishment Democrats.

Booker, who has long positioned himself as a supporter of Israel while also advocating for Palestinian rights, has grown increasingly cautious in recent years about aligning with candidates whose positions might alienate key constituencies. Despite the growing anti-Israel sentiment within the Democratic base, Booker has remained outspoken about the need to secure the release of the remaining hostages in Gaza. Booker regularly wears a yellow ribbon pin on the lapel of his suit jacket as a sign of his support for the hostages.

Many observers have argued that the New York City mayoral race, though local, is a proxy battle for the future of the Democratic party, with some claiming that Mamdani’s blend of left-wing economic policies and anti-Zionism are reflective of the party’s increasingly progressive base.

Mamdani, the 33‑year‑old state assemblymember and proud democratic socialist, defeated former Gov. Andrew Cuomo and other candidates in a lopsided first‑round win in the city’s Democratic primary for mayor, notching approximately 43.5 percent of first‑choice votes compared to Cuomo’s 36.4 percent.

A little-known politician before this year’s primary campaign, Mamdani is an outspoken supporter of the boycott, divestment, and sanctions (BDS) movement, which seeks to isolate Israel from the international community as a step toward its eventual elimination.

Mamdani has also repeatedly refused to recognize Israel’s right to exist as a Jewish state, falsely suggesting the country does not offer “equal rights” for all its citizens, and promised to arrest Israeli Prime Minister Benjamin Netanyahu if he visits New York.

Mamdani also defended the phrase “globalize the intifada”— which references previous periods of sustained Palestinian terrorism against Jews and Israels and has been widely interpreted as a call to expand political violence — by invoking the Warsaw Ghetto Uprising during World War II. In response, the US Holocaust Memorial Museum repudiated the mayoral candidate, calling his comments “outrageous and especially offensive to [Holocaust] survivors.”