Even when the results of an election can be fairly described as a “national wave” in favor of one party, the magnitude of the partisan shift is never uniform from coast to coast. And evidence suggests that this year will follow the same pattern. Recent polls indicate a Democratic lead of about 8 points on average in the overall popular vote for Congress, representing a roughly 10-point swing in the party’s favor compared to 2024. But state-level surveys suggest that the pro-Democratic surge may be even larger in a number of southern and rural midwestern states, including Texas, Iowa, Kansas, Nebraska, Mississippi, and South Carolina. At the same time, some normally blue-leaning territory farther north and west (including New York, Minnesota, New Hampshire, Oregon, and California) appears to be producing much more modest movement toward Democratic candidates.
The result of this geographic variation is an expansion of the electoral battleground. Democrats have managed to compete in an unusally large number of traditionally Republican states and districts this year. Reports have begun to pile up of multiple Republican incumbents in seats that Trump carried by double digits in 2024 who are unexpectedly finding themselves in electoral peril. At the same time, Democratic candidates have also been unable to take some other races off the board in normally friendlier places for the party that should seemingly give them easy victories in a favorable national climate.
This pattern might plausibly illustrate a general sense of political alienation that is simultaneously penalizing sitting Republican officeholders in red states and ruling Democrats in blue states. But there isn’t much historical evidence that American voters punish incumbents on both sides when they are unhappy with the direction of the country. Again and again, the president’s partisan allies have, rightly or wrongly, consistently taken the brunt of popular dissatisfaction—even when the opposition party is not itself held in high esteem.
A more likely explanation reflects the issue terrain that is being contested in this election. My own research has demonstrated that voters’ opinions on economic policies vary less by geographic location than their views on cultural matters. As American politics became increasingly defined by the culture war from the 1990s onward, culturally liberal regions of the nation became more reliably Democratic while conservative areas became more securely Republican—producing the familiar “red versus blue” arrangement of geographic party support while shrinking the scope of the remaining competitive battleground to a small minority of swing states and districts.
But in 2026, cultural issues have become less salient to an electorate that appears primarily concerned about economic prosperity and fairness. Persistently high inflation, decaying perceptions of a border security crisis, and the fading of “Woke 1” discourse on the American left have helped to return popular focus to the foundational economic dimension of party conflict. Between open alliances with tech-lord billionaires, legislated cuts to health care subsidies and Medicaid benefits, and recurrent preoccupations with gold leaf and ballrooms, the second Trump presidency has also taken on more of a traditionally Republican moneyed-class tinge than the first one did. Recent polling by the New York Times suggests that Democratic Senate candidates are more likely than their Republican opponents to be seen as “doing what’s best for ordinary people,” and a national survey by the Associated Press found that 53 percent of respondents agreed that the Democrats were “focused on helping people like me,” compared to only 40 percent who said the same of Republicans.
Putting red states in play isn’t the same thing as winning them. The structurally unfavorable Senate map and gerrymandered House districts in Texas, Florida, Ohio, North Carolina, Wisconsin, and elsewhere mean that a disproportionate popular swing is a necessary but not sufficient condition for major Democratic electoral gains in the South and Midwest. But the fact that Democratic candidates across the country are emphasizing economic appeals while red-state Republicans are attempting to convince voters to focus instead on immigration and LGBT-related controversies reveals how much the parties themselves see Democratic inroads into Republican territory as requiring Americans to shift their attention from cultural battles to their own bank accounts.