The vandals also spray-painted an anti-Semitic slur on the Jewish professor's office.
Law and Justice "is fanning political divisions further by spewing conspiracy theories and using language that plays on people's emotions and strengthens a sense of victimhood," Zselyke Csaky, an expert on Central Europe at Freedom House, told Newsweek.
Macron has sparked outrage from politicians and Jewish leaders for his comments.
"That's where you have to take it from," Rachel Epstein said. "From people who have seen this happening."
Other products included swastika balloons, "Heil Hitler" beer and busts of the Nazi leader.
They were expelled from the school trip and sent back to Israel.
Simon Levis Sullam says Italians played "varying but crucial parts in the tragic process that resulted in genocide," and calls on the country's leaders to admit historical complicity.
The group Monitoring and Combating Antisemitism in Romania called the graffiti an act against the "memory of Elie Wiesel, the memory of the Holocaust victims and the souls of the Holocaust survivors."
Otto Frank was thwarted by "American bureaucracy, war and time," researchers have found.
John Fitzgerald is not the only Republican candidate the national party has had to condemn.
The company's director said he wasn't aware that it was a concentration camp at the time of filming.
After intense backlash against the "Polish death camps" law, Warsaw is watering it down to remove criminal punishment.
Scott Lively campaigned on the message that people who carried out abortions should face serious criminal penalties.
Ursula Haverbeck had been sentenced to two years for Holocaust denial.
Patrick Little, who has embraced the tag of white nationalist, brought weapons to a deadly rally in Charlottesville, Virginia, last year.
The Palestinian Authority president gave a conspiracy theory-laden speech.
The councilman ended up leaving the tour early and standing outside on the sidewalk without explanation.
Seventy percent of Americans believe people care less about the Holocaust than they used to.
These tributes pay respect to the millions of Jews, homosexuals, Roma, disabled people and political opponents murdered under the Nazis.
"Trump is an enabler. Trump has no ideas. Trump is out for himself. He's a sick, very disturbed individual."
A Manhattan judge ruled that two works by Vienna's Egon Schiele belong to three heirs of the Holocaust victim robbed by the Nazis 80 years ago.