By: Fern Sidman
In a striking escalation of the political battle over foreign policy, antisemitism, and the reach of international courts within U.S. borders, House Republican Conference Chairwoman Elise Stefanik on Tuesday introduced sweeping new legislation designed to blunt what she described as “radical and illegal” threats by New York Assemblyman Zohran Mamdani to arrest Israeli Prime Minister Benjamin Netanyahu should he travel to New York City.
The bill, titled the Sovereign Enforcement Integrity Act, is aimed at reinforcing the long-standing U.S. refusal to recognize the authority of the International Criminal Court (ICC) over American sovereignty or the sovereignty of America’s allies. Stefanik presented the measure as a direct response to Mamdani’s September 12 declaration that he would personally seek to arrest Netanyahu under the authority of an ICC warrant.
The ICC, headquartered in The Hague, issued a controversial arrest warrant for the Israeli premier in November 2024. The move drew sharp condemnation from Washington, Jerusalem, and numerous European governments, all of whom accused the Court of politicization and bias against Israel. The United States is not a signatory to the Rome Statute, which created the ICC in 2002, and has consistently rejected its jurisdiction over American citizens and foreign nationals on U.S. soil.
“Antisemite Communist Zohran Mamdani pledged to arrest Israeli Prime Minister Bibi Netanyahu if he came to New York City,” Stefanik declared in announcing the legislation. “The United States is not part of the International Criminal Court and their antisemitic states. That is why I introduced the Sovereign Enforcement Integrity Act: to protect American sovereignty and prohibit radicals like Mamdani from illegally arresting the leader of our democratic ally Israel.”
The bill seeks to create a clear legal firewall preventing any state or municipal authority from honoring or executing warrants, requests, or indictments issued by the ICC unless expressly authorized by federal law. In practical terms, this would prevent a rogue state or local official, such as Mamdani, from attempting to act upon an ICC directive targeting a foreign leader.
According to the text of the legislation, Congress formally finds that:
The United States is not a party to the Rome Statute establishing the ICC.
The U.S. Constitution grants the federal government exclusive power over foreign relations and the treatment of foreign nationals on U.S. territory.
Arresting or detaining foreign nationals based on ICC directives without federal authorization would jeopardize U.S. foreign policy interests and conflict with constitutional principles.
Any law enforcement activity linked to international obligations must be governed by uniform national standards, not left to state or local discretion.
In this sense, the Sovereign Enforcement Integrity Act is both a rebuke to Mamdani’s threats and a broader reaffirmation of constitutional federal supremacy in matters of foreign affairs.
The controversy traces directly to statements Mamdani made earlier this fall. On September 12, the Democratic Socialist assemblyman — already notorious for his support of the Boycott, Divestment, and Sanctions (BDS) movement and refusal to condemn slogans such as “Globalize the Intifada” — publicly declared that he would move to arrest Netanyahu if the Israeli prime minister attended the United Nations General Assembly or other events in New York City.
Mamdani grounded his claim in the ICC’s November 2024 warrant, suggesting that New York law enforcement should act in coordination with the Hague-based tribunal. The comments triggered outrage from Jewish leaders, mainstream Democrats, and Republicans alike, who described his pledge as both unconstitutional and profoundly dangerous for U.S. foreign policy.
Critics stressed that allowing state-level officials to interpret and enforce ICC rulings would not only violate federal prerogatives but also set a precedent that could imperil diplomatic immunity for U.S. leaders abroad.
The International Criminal Court was established to prosecute war crimes, crimes against humanity, and genocide when national governments prove unable or unwilling to act. Yet since its inception, the ICC has faced accusations of selective prosecution, politicization, and disproportionate focus on Israel.
The November 2024 warrant against Netanyahu marked a new low in U.S.-Israel relations with the Court. Israel blasted the move as a cynical attack on its right to self-defense, while the Biden administration — and later the Trump administration following his election — reaffirmed Washington’s rejection of ICC jurisdiction.
By invoking the ICC as justification for targeting a sitting ally head of government, Mamdani has become, in Stefanik’s words, “a willing mouthpiece for antisemitic international forces.”
Stefanik’s Sovereign Enforcement Integrity Act is framed not only as a protective measure for Israel’s premier but as a broader safeguard of U.S. sovereignty. “This is about making sure foreign radicals in The Hague or domestic extremists in New York cannot hijack American law enforcement,” she said.
Republicans see Mamdani’s threats as symptomatic of a deeper ideological trend within the Democratic Party’s far-left flank — one that merges hostility toward Israel with disregard for American constitutional order. Stefanik’s bill thus positions the GOP as both defenders of Israel and protectors of U.S. sovereignty.
Party insiders suggest the legislation could quickly move through the House, where Republicans are expected to rally around Stefanik’s framing of the issue as both a matter of constitutional law and a moral defense of America’s closest Middle Eastern ally.
Reactions among Democrats have been mixed. While senior party leaders have avoided endorsing Mamdani’s incendiary statements, few have openly rebuked him. Some progressives have instead criticized Stefanik’s bill as “overreach,” arguing that it unfairly singles out one state legislator.
Yet moderate Democrats, particularly those representing Jewish constituencies, are quietly relieved by the GOP’s swift response. “Mamdani’s comments were reckless and dangerous,” one New York Democrat, speaking anonymously, told reporters. “No one wants to see city police officers put in the position of interpreting international law against federal directives.”
At its heart, the Sovereign Enforcement Integrity Act underscores Washington’s long-standing commitment to shielding Israel from politicized international forums. Israeli officials quickly welcomed Stefanik’s initiative, interpreting it as a signal of continued bipartisan solidarity with Jerusalem even amidst domestic U.S. polarization.
For Netanyahu, who has faced unprecedented legal and diplomatic challenges since the ICC warrant, the bill represents an affirmation that Israel’s closest ally will not allow international courts or radical state officials to dictate its foreign relations.
Israeli diplomats noted that Mamdani’s threats, if left unaddressed, could have triggered a diplomatic crisis by raising doubts about the safety of Israeli leaders traveling to the United States — a country that has historically served as Israel’s most reliable ally.
Beyond its immediate political context, Stefanik’s legislation highlights enduring constitutional principles:
Federal Supremacy in Foreign Affairs – The bill reinforces that state and local governments cannot set foreign policy or interpret international treaties, especially those the U.S. has explicitly rejected.
Diplomatic Immunity and Reciprocity – If American states attempted to enforce ICC rulings on foreign leaders, other nations might reciprocate by targeting U.S. officials abroad.
Guardrails Against Radicalization – The measure acts as a safeguard against domestic politicians who, for ideological reasons, might attempt to weaponize international bodies against allies.
The Sovereign Enforcement Integrity Act is not merely symbolic. By codifying restrictions on state and local enforcement of ICC warrants, Stefanik aims to close loopholes and preempt further attempts by radicals to undermine federal authority.
Mamdani’s rhetoric, blending antisemitism with radical internationalism, provided the spark. Stefanik’s bill, however, seeks to address the larger fire: ensuring that the United States remains unified, sovereign, and unwavering in its defense of allies like Israel against politicized assaults from international tribunals.
“America cannot allow extremists in Albany or bureaucrats in The Hague to dictate how we treat our friends and allies,” Stefanik said. “The U.S. government alone sets foreign policy, and we will stand shoulder-to-shoulder with Israel — always.”
As the legislation advances, it will test the willingness of Congress to confront both the creeping influence of the ICC and the radicalism of domestic politicians who seek to undermine America’s alliance with Israel.
For Stefanik and her Republican colleagues, the stakes are both constitutional and moral. For Mamdani, the episode cements his place as a lightning rod for controversy and a symbol of the Democratic Socialists’ anti-Israel agenda.
But for the United States and Israel alike, the Sovereign Enforcement Integrity Act could become an important milestone in reaffirming that no foreign tribunal — and no radical state legislator — can dictate the foreign policy of the world’s leading democracy.
