The claim that Donald Trump’s support among Republicans is slipping is mostly true because multiple recent polls show a modest decline in his approval and an increase in disapproval within the Republican base, though he still retains majority support.
Donald Trump’s support among Republicans is slipping, according to new polling.

Trump's job approval and views of his personal traits - Pew Research Center
Source: pewresearch.org
Key Evidence
Pew Research Center shows a decline in job approval from 41% to 38% among Republicans as of August 2025.
Multiple sources report double-digit disapproval rates within the GOP for the first time.
Rolling Stone polling indicates Trump's preference among Republicans dropped to under 50%, with other GOP figures gaining ground.
What the Evidence Shows
Recent polling data from August and September 2025 indicate that President Trump's approval rating among Republicans has declined somewhat compared to earlier periods. For example, Pew Research Center reported a drop from 41% approval to 38% as of August 2025.pewresearch.orgpewresearch.orgTrump's job approval and views of his personal traits Similarly, The Independent and Newsweek highlight that for the first time, double-digit percentages of Republicans disapprove of Trump, with figures around 10-19% disapproval depending on the poll.
independent.co.ukindependent.co.ukTrump’s disapproval among Republicans hits double digits for the first time+2 more
Rolling Stone's poll shows Trump’s preference among Republicans at 49%, with notable support for other Republican figures like Ron DeSantis at 25%, indicating some erosion of Trump's dominance within the party.rollingstone.comrollingstone.comTrump’s Support Among Republicans Is Slipping, Poll Finds However, despite these declines, Trump still maintains a strong majority approval among Republicans, often above 80% in some polls, suggesting his support is slipping but not collapsing.
newsweek.comnewsweek.comDonald Trump’s approval rating falls with Republicans
Additional context from al.com notes increasing Republican pessimism about the country's direction during Trump's second term, which may correlate with shifting attitudes toward his leadership.al.comal.comRepublican doom and gloom is spiking in Trump’s second term, shocking new poll... Overall, the evidence points to a nuanced picture: Trump's support among Republicans is declining modestly but remains substantial.