A Facebook ad aimed at Polish American voters made by Malinowski had initially appeared on the Polish-Americans for Biden page but now promises that Harris will defend both Poland and Ukraine from Russian aggression and features the Trumpeter of Krakow, an iconic symbol of Polish resistance to enemies from the east.

Harris hopes to capitalize on Polish Americans' historic animosity toward Russia and on Trump's hesitancy to back Ukraine during last week's debate. The Democratic vice president's team organized a national call with Polish American supporters on Wednesday to encourage local networks to hold their own events and spread the campaign's message.