FAU/Mainstreet Poll Shows Trump’s Lead Over Biden Shrinks in Florida’s Election Battle

June 12, 2024
Mainstreet Research
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BOCA RATON, Fla. (June12, 2024) – Former U.S. President Donald Trump continues to hold an advantage over incumbent U.S. President Joe Biden among Florida voters who seem divided on culture war issues but united on economic concerns, according to the latest findings from the FAU Political Communication and Public Opinion Research Lab (PolCom Lab) and Mainstreet Research.

Trump Maintains Lead over Biden in Florida, But Gap Narrows

The poll of Florida voters found that 43% of likely voters expressed support for Trump, compared to 37% backing Biden. Another 10% favored Robert Kennedy Jr., while only 6% remain undecided. This reflects a slight tightening from April when Trump led Biden 49% to 40%.

“While Trump is still in front, these numbers suggest Biden has made modest gains and kept the race competitive in the nation’s largest swing state,” said Dukhong Kim, Ph.D., associate professor of political science at FAU.

Biden Banks on Youth, Minority Turnout as Demographic Divides Remain

Candidates still face steep challenges (and some possibilities) in terms of some voter demographics, the poll shows. Younger voters ages 18 to 49 reported that they are more open to third-party candidates (18%) compared to those 50 and older (3%).

Trump draws higher support among white voters without college degrees (57%) than college-educated whites (43%). Meanwhile, Biden performs strongest with Black voters (68%).

“The demographic patterns we’re seeing suggest that Biden’s campaign needs to catch up among the traditional Democratic party coalition partners – women, younger voters, Black voters, and Hispanic voters, Kim said. “But Trump is holding onto his base among white voters, especially those without college degrees.”

Mucarsel-Powell Mounts Surge, Closing in on Scott for Senate Seat

In the Florida U.S. Senate race, the potential matchup between Republican U.S. Sen. Rick Scott and former Democratic U.S. Rep. Debbie Mucarsel-Powell has tightened considerably since the spring. Among likely voters, Scott narrowly leads 45 to 43, which is within the poll’s margin of error. Scott had led Mucarsel-Powell by 17 points in April.

“Mucarsel-Powell was largely unknown in earlier surveys,” said Luzmarina Garcia, Ph.D., assistant professor of political science at FAU. “However, as voters have been introduced to her, she has been gaining in the race. If this trend holds, it could be close in November.”

Immigration Fuels Red-Blue Divide as Pocketbook Woes Unite Voters

The top issues cited by Florida voters in the poll include the economy (38%), immigration (25%), abortion (15%), and crime (6%). While both parties are concerned with the economy, priorities diverge sharply after that issue, with Republicans laser-focused on immigration while Democrats pointing to abortionas a leading concern.

“These issue priorities reflect the national messaging battle being waged by both parties heading into 2024,” said Aaron Veenstra, Ph.D., associate professor in the School of Communication and Multimedia Studies at FAU. “Economic factors like cost of living still weigh more heavily than hot-button cultural issues.”

DeSantis Dynasty? Governor’s Wife Soars in Potential 2026 Primary

Looking ahead to Florida’s 2026 gubernatorial election, the poll tested potential Republican primary matchups. Among GOP voters, 43% prefer Florida First Lady Casey DeSantis, and more than 19% prefer U.S. Rep. Byron Donalds. Other potential candidates, such as Jimmy Patronis, CFO of the state of Florida, and U.S. Rep. Matt Gaetz, trail further behind.

“There’s clearly an appetite among Republican voters to see Casey DeSantis carry on her husband’s legacy as governor,” said Kevin Wagner, Ph.D, co-director of FAU’s PolCom Lab and professor of political science. “Her high name recognition gives her an early advantage, but the race is still very much wide open.”

The survey of 883 Florida adults was conducted from Saturday, June 8 to Sunday, June 9 via interactive voice response and an online panel. No margin of sampling error can be calculated for the full sample, but a sample of this size would carry a margin of error of approximately +/- 3.3%.


AboutFlorida Atlantic University:
Florida Atlantic University, established in 1961, officially opened its doors in 1964 as the fifth public university in Florida. Today, the University serves more than 30,000 undergraduate and graduate students across six campuses located along the southeast Florida coast. In recent years, the University has doubled its research expenditures and outpaced its peers in student achievementrates. Through the coexistence of access and excellence, FAU embodies an innovative model where traditional achievement gaps vanish. FAU is designated a Hispanic-serving institution, ranked as a top public university by U.S. News & World Report and a High Research Activity institution by the Carnegie Foundation for the Advancement of Teaching. For more information, visit

About Florida Atlantic University PolCom Lab:

The Florida Atlantic University Department of Political Science and the School of Communication and Multimedia Studies, in collaboration in with Mainstreet Research, established the PolCom Lab to investigate and analyze public opinion and political trends across the nation,and particularly in the state of Florida.
For more information, visit


About Mainstreet Research:
Founded in 2010, Mainstreet Research is recognized as one of Canada’s top public opinion and market research firms. Since our founding, we have been providing actionable and data-driven insights to our clients to help them make their most important evidence-based strategic decisions. Mainstreet Research is a proud corporate member of CRIC and exceeds all Canadian and international standards for market research and public opinion research.

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