The speaker of Canada’s House of Commons resigned on Tuesday after again apologizing for introducing a 98-year-old Ukrainian who had served with a Nazi SS unit as a “hero” just after President Volodymyr Zelensky of Ukraine addressed a joint session of Parliament. The speaker, Anthony Rota, introduced Yaroslav Hunka, a constituent from his electoral district, as “a Ukrainian hero, a Canadian hero” on Friday prompting two standing ovations from the lawmakers and other guest as well as a fist pump from Mr. Zelensky, who is Jewish. But over the following days, several Jewish groups expressed anger and outrage, saying that...