Accompanied by his wife and daughter, the Republican visited the Nazi Camp, opened in southern Germany in 1933 where more than 200,000 prisoners from thirty countries were detained. More than 41,000 of them died there. "We must never forget the atrocities committed against the Jews and others during the Holocaust," wrote Mike Pence on Twitter. His visit punctuates a week marked by several questions about the multiplication of antisemitic acts in the United States addressed to Donald Trump.

Donald Trump not an anti-semitic:

During a long press conference on Thursday, the US President responded with exasperation to an Orthodox Jewish journalist who had begun his question by saying that he did not think that Donald Trump or "no member" of his team was pro-Semitic.

The president interrupted him dryly when he began questioning him about the reported increase in antisemitic acts in the country.

Trump's reply:

"First, I'm the least anti-Semitic person you've ever seen in your entire life," he said before leaving in a long reply, saying he was "insulted" by what he perceived as an accusation of anti-Semitism.

"I hate this accusation, I find it disgusting," he said, recalling that two days earlier Israeli Prime Minister Benjamin Netanyahu had swept these allegations against Donald Trump and his entourage. His daughter Ivanka converted to Judaism before marrying Jared Kushner, a Jewish American Orthodox who became a very close advisor to the American president.

A rise in Anti-Semitic and racist cases:

Anti-Semitic and racist acts have increased in the United States since the election of Donald Trump on November 8, according to the Southern Poverty Law Center. The center had identified 867 cases of harassment and intimidation within ten days of his victory, pointing out in a report that "many perpetrators (of these acts) referred to the name of Trump while they were committing them.

According to CNN, 48 Jewish synagogues and cultural centers received nearly sixty bomb threats in January in the United States and one Canadian province. The White House had been sharply criticized for not mentioning the word "Jewish" in a short statement issued for the World Day in memory of the victims of the Holocaust.

A spokesman for Donald Trump, Hope Hicks, then explained that the administration had wanted to "take into account all those who have suffered." Donald Trump chose this day to sign his controversial anti-immigration decree.