have crossed the border. >> i am mexican, 100%. i am against all the illegals. >> i see a lot of people wanting a handout, instead of coming to work. >> reporter: yvette comes from a prominent democratic political family in nogales. now she's a maga republican, and the chairwoman of latinos for lake, which supports trump ally, kari lake in her race for the senate. >> we're seeing so many people from like 160 different countries that don't even speak english. >> reporter: the republicans seem to be winning the messaging war on immigration, and gaining traction with latino voters, many who are immigrants, who are not part of the trump base. the question is whether they'll reach enough of them to flip swing states back to trump. most latino voters in the southwest are mexican americans who have lived in the border lands for generations or part of a wave of immigration that started in the 1980s. hundreds of thousands of arizonians live in a household where someone is undocumented,