According to the Anti-Defamation League, anti-semitism is: "The belief or behavior hostile toward Jews just because they are Jewish. It may take the form of religious teachings that proclaim the inferiority of Jews, for instance, or political efforts to isolate, oppress, or otherwise injure them. It may also include prejudiced or stereotyped views about Jews." Source: Anti-Defamation League

Anti-semitism is part of the belief system and political ideology of white nationalists and neo-Nazis, who draw on the imagery and language of the Nazi Regime during WWII to incite hatred toward Jews. This includes the use of swastikas, photos of concentration camps, versions of the Nazi Heil Hilter salute, the Star of David, and long-standing anti-semitic conspiracy theories such as that Jews control Hollywood, the media, global banking, and political systems. 



Trump has close ties to white supremacist (also called alt-right) groups, who are enthusiastically supporting his presidency. He uses specific language in campaign ads, speeches, and on Twitter, which are intended to garner the support of white nationalists and to embolden both hate speech and action. (See more here: Hate Crimes.)


The presence of orthodox Jews like Ivanka and Jared Trump in the administration has led some to propose that Trump can not possibly be anti-Semitic. On the other hand, his senior advisor, Stephen Bannon, is a white nationalist, who said that he didn't want his children going to school with Jews. In an opinion piece, historian Suzanne Schneider clarifies the uneasy partnership between anti-Semitism and Zionism, both represent a form of nationalism:

The alliance of right-wing Zionists and the “alt-right” should not be viewed as an abnormality, but as the meeting of quite compatible outlooks that assert — each in its own way - that the world will be secure only once we all retreat to our various plots of ancestral land. 

In an opinion piece for the Washington Post, Five Myths about Anti-SemitismYair Rosenberg addresses several important misconceptions about modern anti-Semitism: 

Five Myths:
Anti-Semitism largely subsided after the Holocaust.
Anti-Semitism comes predominantly from the right.
Criticism of Israel is generally anti-Semitic.
Criticism of Israel cannot be anti-Semitic.
Anti-Semitism mostly threatens Jews.