The June survey showed that Trump had a 31-point lead over DeSantis in the GOP primary (51 to 20 percent), with no other Republican candidate in the crowded field, such as former vice president Mike Pence or former South Carolina governor Nikki Haley, getting more than 4 percent.
Trump's lead in the GOP primary has also fallen slightly between the two polls when broken down into just registered Republican or Republican-leaning independent voters.
In the July poll of 502 registered voters, 48 percent said Trump was their preferred 2024 GOP candidate, with DeSantis 26 points behind on 22 percent. In June, Trump's lead over DeSantis with registered GOP voters was 30 points (51 to 21 percent).