DeSantis sparked backlash Wednesday. Speaking to Fox News, he said Florida voters should not "monkey it up" and vote for what he called Gillum's "socialist agenda." DeSantis' campaign denied the comment had any racial intent.
Arizona and Florida both hold high-profile Senate and governor's races in this year's midterm elections.
After Congress' latest stumble on immigration reform, it appears no closer to solving the issue during Trump's presidency than it was in the two preceding administrations.
House Republicans will consider two immigration bills next week as a compromise between moderate and conservative members.
House leaders want to push fractured Republicans toward consensus on immigration.