As mayor of Chicago, I denounced Trump for his anti-Muslim policies. I worked to make Chicago a welcoming city to Americans of all backgrounds, creating an Office of New Americans to help immigrants and refugees in my city, which has been a gateway for immigrants to the U.S. for generations. I appointed Seemi Choudry, herself the daughter of Pakistani immigrants, to lead that effort.

I often say that only in America could the son and grandson of immigrants become the chief of staff to the president and mayor of one of its largest cities. I fully expect Muslim Americans to follow this well-trod path, as we’re witnessing already with the election of candidates like Ilhan Omar to Congress.

No doubt, such candidates will have to overcome allegations of dual-loyalty and of taking campaign contributions from fellow-Muslims with nefarious goals in mind. And when they do, Jewish Americans like me will come to their defense—because we know the pain and potential damage of these bigoted stereotypes. It’s time for Omar to learn that lesson.