Antisemitism, as Albert Einstein warned almost 90 years ago, is “an omnipresent enemy.” It must be confronted with seriousness and moral clarity, explains Jerry Nadler, the most senior Jewish member of the US House of Representatives. Nadler, who represents a New York City district with one of the largest Jewish populations in the United States, has for decades supported every effort to “genuinely counter the scourge of antisemitism.” But he did not support the bipartisan Antisemitism Awareness Act, which the House of Representative passed Wednesday by a 320-91 vote, as part of what Speaker Mike Johnson, Republican of Lousiana, described as “a House-wide effort to crack down on antisemitism on college campuses.”

Why did Nadler, a Democrat whose district includes or adjoins a number of college campuses that have been scenes of protests and encampments by students seeking peace and justice for Palestinians, cast an emphatic “no” vote? Because, says the former chair of the House Judiciary Committee, “this legislation threatens freedom of speech, one of our most cherished values, while doing nothing to combat antisemitism.”

In particular, the House bill, adopts a definition of antisemitism that could be used to penalize criticism of Zionism, which many Jews oppose, and the actions of the state of Israel. Many Jews have condemned Israel’s policies, including independent US Senator Bernie Sanders of Vermont, who on Thursday warned Congress against accepting an argument made by Israeli Prime Minister Benjamin Netanyahu “that equated criticism of his government’s illegal and immoral war against the Palestinian people with antisemitism.” Sanders, who lost much of his family in the Holocaust, counseled against falling for claims that “if you are protesting, or disagree with what Netanyahu and his extremist government are doing in Gaza, you are an antisemite.”

“That is an outrageous statement from a leader who is clearly trying—and I have to tell you, he seems to be succeeding with the American media—trying to deflect attention away from the horrific policies that he is pursuing that created an unprecedented humanitarian disaster,” said the senator. “So, let me be as clear as I can be: It is not antisemitic or pro-Hamas to point out that in almost seven months Netanyahu’s extremist government has killed 34,000 Palestinians and wounded more than 77,000—seventy percent of whom are women and children.”

Nadler brought all these issues into perspective with a floor speech opposing what he damningly dismissed as “political theatrics” by Johnson and top Republicans in the House, who gained the support of many Democrats for their Antisemitism Awareness Act. Calling out the hypocrisy of GOP leaders who rushed consideration of the measure as a response to the proliferation of Gaza solidarity encampments on campuses nationwide, the New York representative cut through the spin and announced:

If my Republican colleagues were serious about antisemitism, they would have spoken up after Neo-Nazis in Charlottesville chanted that, quote, “Jews will not replace us.”

If my Republican colleagues were serious about antisemitism, they would have spoken up when President Trump declared that there were, quote, “very fine people on both sides” of that rally, or when he said that the Charlottesville rally was a “little peanut” compared to ongoing campus protests regarding the Israel-Gaza war.

We hear nothing from our Republican colleagues when some conservatives repeat antisemitic tropes about George Soros or others.

I say to my Republican friends, for too long, your selective silence on these matters has been deafening.

Nadler’s detailed and powerful speech should have been headline news after Wednesday’s vote. At a time when Republican members of Congress, billionaire right-wing donors and their allies in academia, and the media are launching a fierce assault on campus free speech—as part of a transparent election-year effort to further divide the electorate —Nadler emerged as a voice of reason who, from his decades of experience, raised the alarm about a chilling assault on the right to dissent.

More than 2,000 college students, faculty members, and their allies have been arrested on campuses in recent weeks. The numbers are rising daily, as generally peaceful Gaza solidarity encampments are targeted by college administrators and the police, often in response to pressure from Republican legislators and operatives. One such operative is former Wisconsin governor Scott Walker, who since his reelection defeat has served as president of Young America’s Foundation, a right-wing effort focused on campuses. Walker, who like many conservatives used to make a big deal about academic free speech, has responded to the tens of thousands of students who are exercising free-speech rights at colleges and universities across the country with the meme “Arrest Them, Remove Them. Expel Them.”

The Republican fabulists are neglecting the fact that the campus protests include many Jewish students, as well as Muslims, Christians, and nonbelievers, and that they are supported by groups such as Jewish Voice for Peace, If Not Now, and members of Rabbis for Ceasefire. Arkansas Senator Tom Cotton referred this week to the student encampments as “the little Gazas that have risen up on campuses across America,” which he dismissed as “disgusting cesspools of antisemtic hate full of pro-Hamas sympathizers, fanatics and freaks.” Cotton, whose disregard for civil liberties and democracy is well-established, has a long history of trafficking in false narratives. But this rejection of freedom-of-speech standards that are as old as the American experiment is gaining traction in Congress, as the House vote illustrates.

This has got thoughtful members, like Nadler, worried. “There is no excuse for bigotry, threats, or violence directed at anyone, anywhere, and it is imperative that we confront the scourge of antisemitism,” he said. But regarding the legislation that so many Republicans and Democrats embraced Wednesday, Nadler argued that it is not the answer. Indeed, he explained, “this bill threatens to chill constitutionally protected speech.”