Alberta’s United Conservative Party has rejected a potential election candidate who compared vaccine passports to the policies of Nazi Germany and spread misinformation about COVID-19 online, setting up a potential showdown between the party’s provincial board of directors and the disqualified politician’s local supporters. Cynthia Moore, the president of the UCP, confirmed on Tuesday that the party had disqualified the politician, Nadine Wellwood, as a potential candidate for the southern Alberta riding of Livingstone-Macleod. Ms. Wellwood has appealed the decision, and Ms. Moore said the board will soon meet to review the case. Ms. Moore would not say what had...