In the aftermath of the Oct. 7 attack on Israel by Hamas two years ago, high school teacher Josh Hirsch posted comments on social media in support of Israel. It was unrealistic for Hamas to expect a ceasefire, he wrote, as long as they were holding hostages.

Soon afterward, a former student called for his firing. A note taped outside the door of his Adams County, Colorado, classroom contained his wife’s name and their home address. And a sticker that appeared on his chair read: “Israel is committing genocide in Gaza.”

The reaction startled Hirsch, the only Jewish teacher in his school building. For the first time in his 14-year career, he considered quitting. He stayed and joined an educators’ advocacy network created by the Anti-Defamation League, a way he saw to make schools more inclusive of diverse viewpoints.

“I’ve been a teacher and tried to keep my focus on being the best teacher I could,” he said.

Tensions over the Israel-Hamas war have spilled into schools around the U.S., with advocates reporting a rise in antisemitic harassment since the 2023 surprise attack on Israel. While some argue school leaders have failed to take the threat seriously, others warn criticism of Israel and the military campaign in Gaza are interpreted too often as hate speech.

The Trump administration has not punished school systems the way it has hit colleges accused of tolerating antisemitism, but schools are still facing pressure to respond more aggressively. Several states have pressed for new vigilance, including legislation that critics say would stifle free speech.

Both conservative and liberal states apply more scrutiny

Lawmakers in Texas, Arkansas, Oklahoma and Tennessee have passed measures to increase school accountability for complaints of antisemitism, and a law signed by California Gov. Gavin Newsom, a Democrat, will provide training to identify and prevent antisemitism in schools. In Arizona, the Democratic governor vetoed a bill on how to deal with reports of antisemitism in schools, calling it an attack on educators.

Many of the measures, including one signed by Oklahoma’s Republican governor, call for adoption of a definition of antisemitism that casts certain criticism of Israel as hate speech.

“These bills make it clear that Oklahoma stands with our Jewish communities and will not tolerate hatred disguised as political discourse,“ said Kristen Thompson, a Republican state senator in Oklahoma who authored the legislation.

Dozens of states have adopted the definition promoted by the International Holocaust Remembrance Alliance, which is also recognized by the U.S. State Department. It lists 11 examples of antisemitic conduct, such as applying “double standards” to Israel or comparing the country’s policies to Nazism.

While supporters of this definition of antisemitism say it is necessary to combat evolving forms of Jewish hate, civil liberties groups warn it suppresses pro-Palestinian speech.

Trump administration approach contrasts with attacks on colleges

The Trump administration has leveraged antisemitism investigations in its efforts to reshape higher education, suspending billions of dollars in federal funding to Harvard, Columbia and other universities over allegations they tolerated hate speech, especially during protests over the Israel-Hamas war.

The White House has not gotten as involved at the K-12 level. At congressional hearings, House Republicans have taken some large school systems to task over their handling of antisemitism, but the administration largely has left it to the Education Department’s Office for Civil Rights to address complaints.

In one of the cases under investigation, a complaint described students at the Berkeley Unified School District in California asking Jewish classmates what “their number is,” referring to numbers tattooed on Jews during the Holocaust. It also said teachers made antisemitic comments and led walkouts that praised Hamas.

The district did not respond to a request for comment.

In another California case, the family of a 14-year-old girl filed a federal lawsuit last year alleging she had to leave University Preparatory Academy, a charter school in San Jose, in 2023 because of antisemitic bullying. After the Hamas attack, she said students called her names, including “terrorist.” The California Department of Education and the school said they could not comment on pending litigation.

Nationwide, the ADL recorded 860 antisemitic incidents in non-Jewish schools last year, ranging from name-calling and swastikas etched on lockers to antisemitic materials being taught in classrooms. The number was down from over 1,100 recorded in 2023, but well above numbers in prior years, according to the ADL.

A Massachusetts teachers union pushes back

A Massachusetts state commission formed last year to combat antisemitism found it was a “pervasive and escalating problem” in schools.

At one meeting, a commission co-chair, Democratic state Rep. Simon Cataldo, said the Massachusetts Teachers Association was sharing antisemitic resources with teachers, including a kindergarten workbook that describes Zionists as “bullies” and an image of a Star of David made of dollar bills. The union said those were singled out among hundreds of images in art and posters about Palestinians, and links to those materials were removed.

The union said it has engaged in efforts to confront increases in both antisemitism and Islamophobia and accused the commission of “offensive political theater.”

“Those who manipulate antisemitism to achieve political objectives — such as undermining labor unions and public educators — are following the lead of the Trump administration,” the union said in a statement.

Margaret Litvin, an associate professor of Arabic and comparative literature at Boston University, said the commission was “deliberately conflating criticism of Israel with prejudice against Jews and bias against Jews.“ That approach will be used to justify “heavy-handed” interference by the state in school district affairs, said Litvin, co-founder of the Boston-area Concerned Jewish Faculty and Staff group.

Controversy reaches the biggest teachers union

The tension reached the National Education Association, the nation’s largest teachers union, which this summer weighed a proposal to drop ADL classroom materials that educators use to teach about the Holocaust and bias. Backers said the ADL had an outsize influence on school curricula and policy, with an underlying pro-Israel viewpoint.

Delegates at the union’s representative assembly narrowly voted to approve the proposal, but they were overruled by the NEA board of directors. Union President Becky Pringle said the proposal “would not further NEA’s commitment to academic freedom, our membership, or our goals.”

In the aftermath, the ADL invited K-12 educators to join a new network called BEACON: Building Educator Allies for Change, Openness, and Networks, which it said is intended to help educators learn from each other how to address and combat antisemitism and other forms of hate.

Hirsch, the teacher in Colorado, was among hundreds who expressed interest.

Some of the blowback he faced stemmed from his online commentary about local activist organizations. After donating money to Black Lives Matter groups and supporting them with a sign in his yard, he expressed feelings of betrayal to see the groups expressing support for Palestinians and not Israel.

He said he was surprised by the reaction to the posts in his predominantly Hispanic school community. A former debate coach, he aims through his work with the ADL network to help students share their opinions in constructive ways.

“If we’re giving them the opportunity to hate and we’re giving them the opportunity to make enemies of someone, it really is counterproductive to what we’re trying to do as a society,” he said.

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