>> they clearly exploit hateful narratives that we've seen being used by full-on hate actors. but it's also medical misinformation that might persuade people that the way to solve this crisis is not through vaccination and through following public health guidance but instead to somehow restrict immigration. >> reporter: we reached out to the offices of the politicians who used the issue of migrants with covid in their fundraising, including florida governor desantis who is seen as a potential candidate for president and whose state is the american epicenter of the pandemic. his office said the governor's main concern is about the biden administration's policies and how they are executed. a reminder, don. his state currently is overwhelmed by the virus. >> it is. thank you, joe johns, i appreciate that. cnn political commentators ana navarro and scott jennings are here now. i'm wondering if any of the republicans spreading these ads are doing it just because it is