Trump's Most Conservative Base Shows Signs of Fracture

Key Takeaways from the Marquette Poll

President Donald Trump's approval rating among very conservative Americans has dropped significantly in just two months, according to a new poll by Marquette Law School. In July, 84% of respondents identified as very conservative and approved of Trump, but by September, that figure had fallen to 76%. The 8-point drop may signal a growing disconnect between the president and his most loyal supporters.

This decline isn't just a blip in polling data—it's a potential red flag for the Republican Party as it prepares for midterm elections. What's particularly telling is that while Trump's overall approval remains low, it's the enthusiasm among this group that seems to be fading.

"Even highly supportive voters can become less approving when they are dissatisfied with specific outcomes," said political science professor Costas Panagopoulos. "It's not about changing their minds but rather about losing motivation."

The Numbers Tell a Story

The Marquette poll surveyed 1,023 adults nationwide in September and 1,076 in July, with margins of error of ±3.3% and ±3.2%, respectively. The key data point is the net approval rating among very conservative respondents: it dropped from +68 (approval of 84%, disapproval of 16%) to +52 (approval of 76%, disapproval of 24%).

While this might sound like a small shift, in political terms, it's significant. The margin of error for the very conservative group—110 respondents—makes the change even more concerning. "A single subgroup shift can reflect sampling variability," warned Panagopoulos. But he also acknowledged that if such trends continue across multiple polls, they may indicate a real shift in sentiment.

What's Driving the Decline?

Political scientists are pointing to two main factors behind this dip: economic dissatisfaction and foreign policy concerns, particularly the ongoing conflict with Iran.

• Economic Concerns: Approval ratings for Trump's handling of inflation and the cost of living sat at just 19%, while his economy approval stood at 28%. These figures are particularly troubling because economic issues dominate public concerns, with 37% of adults citing inflation as their top worry.
• Iran War: Approval for Trump's handling of the Iran conflict was even lower—only 26%, placing it below his ratings on tariffs, foreign policy, immigration, and border security. This is a sharp contrast to July when many conservative voters were likely more supportive of his tough stance.

Grant Reeher, a political science professor at Syracuse University, added that financial pressures are taking a toll on voters on the economic margins. "People who are already struggling financially may be less forgiving," he noted. "And if they're not just watching from the sidelines but feeling the impact personally, their support for Trump may waver."

The RNC's Counter-Narrative

Republicans have quickly pushed back on this narrative, citing a separate metric—the level of enthusiasm among conservative voters. The Republican National Committee (RNC) argued that enthusiasm is rising, not falling, especially following the 2026 Republican National Convention.

Natalie Baldassarre, RNC national press secretary, responded to Newsweek with a dismissive tone: "Polls serve as a snapshot in time, not a crystal ball, and Newsweek's attempt to cherry-pick data to manufacture Republican collapse is lazy spin."

She emphasized that the poll shows conservative voter enthusiasm continuing to grow—especially since their convention, which she described as a "great success" that further energized the base. That argument holds some merit, but the evidence isn't entirely clear-cut.

A Mixed Picture of Enthusiasm

The data from Marquette's cross-tabs reveal a nuanced picture. While voting likelihood among very conservative Americans rose—from 69% certainty to 72% certainty—overall enthusiasm (very or somewhat enthusiastic) actually declined slightly, from 78% to 74%.

This is the crucial distinction: high voting intention doesn't always equal high political engagement. If voters are simply going to vote because they feel obligated, but aren't excited about their candidate, that could mean fewer campaign volunteers, less grassroots organizing, and ultimately, weaker turnout in close races.

What It Means for Midterms

Neither Reeher nor Panagopoulos believe this shift indicates a mass defection to Democrats. "Voting for a Democratic alternative is a higher bar than stating lack of approval," said Reeher. "But it suggests more about potential turnout effects than vote choice."

This distinction matters enormously in the context of midterms, where turnout can be the deciding factor. A candidate with broad but lukewarm support might lose to one who has fewer votes but higher enthusiasm.

"In a midterm, that's really important," added Panagopoulos. "Some voters simply staying home could be enough to alter the result."

The White House's Response

The White House, for its part, has dismissed polling data as irrelevant in favor of Trump's 2024 election victory. Spokesman Davis Ingle told Newsweek, "The ultimate poll was November 5th 2024, when nearly 80 million Americans overwhelmingly elected President Trump to deliver on his popular and commonsense agenda."

This is a telling argument, especially as it's being used repeatedly across multiple polling inquiries. It reflects the administration's belief that their core base remains solid, despite what data suggests otherwise.

Why This Matters

Trump's approval rating among his most loyal supporters matters more than just for the immediate future—it sets a tone for how the rest of the electorate views the Republican Party. When the most ideologically aligned base starts to show signs of wear, it sends a message that resonates far beyond the polls.

My investigation into these developments has shown that the decline in support among conservatives isn't just about policy disagreements—it's about motivation. The Republican Party is now facing a challenge that goes beyond traditional political dynamics: they're dealing with what could be a quiet, yet significant, erosion of the energy that drives their base.

As we move toward the midterms, this trend needs to be closely monitored. A lack of enthusiasm in key districts may not translate to electoral loss—but it can certainly make races much tighter than they should be.