Dylan Williams of J Street, in a recent op-ed, called on the Biden administration to “rebuild the U.S. relationship with moderate Palestinian leaders.” Since presumably J Street would not claim that the leaders of the genocidal Hamas gang are “moderate,” then the “moderate Palestinian leaders” Williams and J Street have in mind must be Palestinian Authority chairman Mahmoud Abbas and those around him.

Less than three years ago—on April 30, 2018—Abbas stood before the opening session of the Palestine National Council (PNC) and delivered a blatantly anti-Semitic speech. Abbas stated that Jews have “no historical ties” to the Land of Israel because they are actually descendants of the Turkish Khazar tribe (a bizarre and long-discredited conspiracy theory).

Also, Abbas said that there has never been an anti-Semitic incident against Jews in Arab countries—“Not even once,” he declared. “Do you think I’m exaggerating? I challenge you [to find] even one incident against Jews in over 1,400 years.”

Then Abbas asserted that the Holocaust was not the result of anti-Semitism, but rather was caused by the Jews’ own “social behavior, [charging] interest, and financial matters.” Abbas’s previous claims about the Holocaust—described in detail in his 1982 doctoral dissertation and subsequent book—include that only a few hundred thousand—not six million—Jews were killed by the Nazis; and that David Ben-Gurion collaborated with the Nazis to kill Jews to garner world sympathy for creating a Jewish state.

What did J Street—which now speaks of “moderate Palestinian leaders”— say about Abbas’s speech? In a May 1, 2018 press release, J Street said that it “strongly condemns remarks made by President Mahmoud Abbas on Monday that featured absurd anti-Semitic tropes and deeply offensive comments on the history of the Jewish people and Israel.” J Street called Abbas’s speech “incendiary” and said “there is absolutely no excuse” for what he said.

If, less than three years ago, Abbas was—according to J Street—an anti-Semite, how is it that he is now “moderate”? Does anti-Semitism have a shelf life and an expiration date?

Or does J Street simply wait until everybody has forgotten about Abbas’s speech, so that it can resume calling him “moderate” in order to advance the Palestinian cause?

And is J Street simply hoping that the rest of us will not notice that under Abbas, anti-Semitism still fills the PA-controlled media and school textbooks?

Or does J Street acknowledge that Abbas is still an anti-Semite? And if so, where are those mysterious, unnamed “moderate Palestinian leaders” to whom Dylan Williams referred and whom J Street wants the U.S. to shower with financial aid and political support?

J Street’s May 2018 condemnation of Abbas was a rare and impressive criticism of a figure whom J Street had almost never previously criticized. Publicly challenging a leader whose policies you generally support is never easy. At the time, some skeptics, myself included, wondered if the condemnation was sincere or was just a quick gesture intended to make J Street look reasonable but having no intention of actually confronting Palestinian anti-Semitism.

If J Street wants the Jewish community to believe that its opposition to Palestinian anti-Semitism is sincere, it must insist that Abbas officially recant his speech, withdraw his anti-Semitic book from circulation, and eliminate anti-Semitic statements from the PA-controlled media and schools.

When I say “recant,” I don’t mean a mealy-mouthed statement like the one Abbas issued in 2018, following the international uproar over his anti-Semitic remarks. “If people were offended by my statement in front of the PNC, especially people of the Jewish faith, I apologize to them,” he said. That wasn’t a genuine apology. Not even close. The problem with Abbas’s speech was not that some people took offense (as if they were being thin-skinned and overreacting); the problem was that what Abbas said about Jews was wrong, vile and bigoted. That’s what Abbas has to admit, and recant.

Admitting he was wrong is vitally important, in order to send a message to the Palestinian public that the anti-Semitic lies they have been hearing all these years—in their leader’s speeches and books, and in their media and schools—were wrong.

Only when the Palestinians, starting with their leaders, genuinely give up their anti-Semitism, can we take seriously claims by Dylan Williams and J Street that “moderate Palestinian leaders” exist with whom the United States should interact.

Moshe Phillips is national director of Herut North America’s U.S. division. Herut is an international movement for Zionist pride and education. Herut’s website is www.herutna.org.