Post-Mortem Poll: Turnout Dips and Trump Defectors Each Drove Half of Democrats’ Win as Rubio Edges Vance for 2028

WASHINGTON, D.C. (November 13, 2026) – Cygnal, one of the nation’s fastest growing and most accurate private polling firms, released its 2026 midterm post-mortem National Voter Trends (NVT) poll (conducted Nov. 4–5) of 3,000 midterm voters.  

The survey finds Republicans lost the middle, and much of that loss was locked in long before Election Day. Republicans sat at 42 percent on the generic ballot in Cygnal’s polling since the summer. That’s where they finished. The other loss was many Republican-leaning voters staying home compared to juiced Democratic-leaning turnout, with Republicans only winning Election Day voters by 1 point, a huge departure from 2024. 

“Republicans lost their base as they lost the middle, and they lost those voters a year before anyone cast a ballot,” said Pollster and CEO, Brent Buchanan. “Democrats won the House and Senate as a check on the President rather than a political mandate. But if they take the reins in January chasing investigations and impeachment instead of results, they’ll be working against the 51 percent of voters, including one in five Democrats, who want this Congress to work with the President.” 

How It Happened 

Why It Happened 

“When you look at who actually decided this election, it wasn’t a late wave of enthusiastic Democrats rushing to the polls,” said Buchanan. “Two-thirds of voters had made up their minds by Labor Day, and the late deciders actually leaned Republican. The late-breaking damage came from a small group of Trump 2024 voters who wanted lower prices and results. They didn’t get them, so they walked to the other side. That’s a delivery problem, not an ideological one, and the good news for the GOP is that delivery problems can be fixed. Democrats, on the other hand, take control of Congress in January without a leader or a mandate voters can name, and that’s a much harder problem to solve.” 

What’s Next 

“The companies that wait until the first Democrat-led hearing on their sector to engage will be stuck playing defense, in D.C. and in the court of public opinion, for years,” said Buchanan. “Voters elected Democrats who intend to go after health insurance companies, AI and data center developers, and pharma. It’s no longer conjecture to say corporate America is in for a bumpy ride, and companies better learn how to talk to and emotionally connect with voters, not just hire lobbyists.” 

Data Nuggets: 

 

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Led by CEO and pollster Brent Buchanan, author of America’s Emotional Divide, Cygnal is an award-winning international public opinion and predictive analytics firm that has revolutionized the polling industry with multi-mode polling, message mapping, and emotional analytics. Recognized as the #1 private pollster by the Silver Bulletin and The New York Times, the firm boasts an impressive 95 percent accuracy rating in the 2024 election cycle. With experience in all 50 U.S. states and over 20 countries, Cygnal has strategically guided over 3,200 campaigns and conducted more than 5,100 polls. Its client roster includes high-profile figures such as Governors Greg Abbott and Brian Kemp, along with numerous other Members of Congress, state legislators, caucuses, corporations, and trade associations, solidifying Cygnal as a clear leader in political polling and analytics.