How has the messaging on illegal immigration affected Republican Party registrations?

According to Jonathan Lines, Yuma County Supervisor, the messaging on illegal immigration has led to a surge in Republican Party registrations. Lines notes that he has spoken with many legal immigrants who support this type of messaging campaign against unlawful migration. The multi-million dollar ad campaign targeting illegal immigration appears to be resonating particularly well with those who immigrated legally to the United States. This effective communication strategy has successfully translated into measurable political gains for the Republican Party in terms of new voter registrations.