A new AP-NORC poll shows that immigration remains a relatively stronger issue for President Donald Trump than the economy or Iran, even after three people were killed in encounters with Immigration and Customs Enforcement (ICE) within a single week in July.

The survey, conducted by The Associated Press-NORC Center for Public Affairs Research, found that only 39% of U.S. adults approve of Trump's performance on immigration — down from 49% at the start of his second term. Despite that decline, roughly 8 in 10 Republicans continue to back his handling of the issue, a slight drop from the approximately 9 in 10 who approved at the beginning of his second term. His base-level support on immigration has remained mostly stable since last summer, even amid a chaotic year of enforcement actions.

Republicans are more likely to approve of Trump's handling of immigration than of the economy or Iran. In the past month alone, Republican approval of his handling of Iran has slipped slightly in AP-NORC polling.

About half of U.S. adults say Trump has "gone too far" in deporting immigrants living in the country illegally — a figure that has held steady for over a year despite multiple immigration crackdowns that deployed federal law enforcement to major cities and at least 10 deaths involving encounters with immigration officers since the mass deportation campaign began. Republicans are far less likely to view these actions as oversteps.

Overall, Trump's popularity has declined since he took office last year. However, the findings underscore the relatively muted impact that the past year's aggressive immigration enforcement has had on his public standing. That contrasts with views on his handling of Iran, where there have been more recent signs of slippage, even among his own supporters.

Americans remain divided on whether Trump has overstepped on immigration broadly. About half of U.S. adults say he has "gone too far" in restricting legal immigration, consistent with the last time the question was asked in February. Roughly 47% say Trump has exceeded his authority on deporting immigrants in the country illegally. In both cases, about 3 in 10 say his actions have been "about right," and nearly 2 in 10 say he has not gone far enough.

Among Republicans, only about 2 in 10 or fewer say he has "gone too far" on deporting immigrants in the country illegally or on restricting legal immigration.

However, a majority of Americans say Trump has gone too far in using traffic stops to identify and arrest immigrants living in the U.S. illegally — a practice central to two recent ICE shootings in Maine — and in deploying federal immigration agents into U.S. cities. Republicans were less likely to consider these oversteps.

James Leatherman, a 68-year-old Republican from San Antonio, supports Trump's overall handling of the presidency and backs him on immigration in particular.

"You cannot come in here illegally — you're breaking the law," he said.

More Americans disapprove than approve of how ICE enforces immigration laws. About half "strongly" or "somewhat" disapprove of the agency's approach, while roughly 3 in 10 "strongly" or "somewhat" approve. The partisan divide is stark: about 6 in 10 Republicans approve of ICE's approach, compared with about 2 in 10 independents and just 4% of Democrats.

Eric Coursen, 76, an independent from Chincoteague, Virginia, agrees with the president that the immigration system had problems. He said he does not believe in open borders but is deeply opposed to how the administration has been enforcing immigration law.

"It's like taking some bread when you're hungry and you take it, you're going to shoot that person rather than just, you know, get them for theft?" he said. "It's just overkill."

On the economy, just 32% of U.S. adults approve of how Trump is performing — down from 40% at the start of his second term. During his first term, Trump's lowest economic approval rating was 40% in December 2017; his current rating sits well below that mark. The 32% figure is the lowest economic approval of either Trump presidency and reflects sustained voter frustration with grocery, housing, and fuel costs that have outpaced wage growth for many households.

Roughly 69% of Republicans approve of Trump's handling of the economy, broadly in line with the share who approve of his overall performance as president but slightly below the 78% who approved early in his second term. That nine-point erosion within his own party signals that price pressures are reaching even reliably Republican households, a dynamic that could shape battleground-district competitiveness.

Leatherman, despite his support for Trump, acknowledged feeling the pinch of higher prices. "I almost have to go to the bank to get a loan before I go grocery shopping," he said.

About 7 in 10 U.S. adults describe the nation's economy as "very" or "somewhat" poor, consistent with April. Republicans are more optimistic, with about 6 in 10 saying the U.S. economy is doing well, compared with roughly 2 in 10 independents and about 1 in 10 Democrats.

Healthcare has never been a strong issue for Trump. Unlike immigration and the economy, a clear majority of U.S. adults has disapproved of his performance on healthcare across both presidential terms. The new poll found that only about 3 in 10 Americans approve of his handling of healthcare, unchanged from when the question was last asked in December.

However, Trump has seen a rebound on the issue among his own supporters since late last year. Roughly 71% of Republicans now approve, up from 59% in the December poll.

That shift comes as Democrats marked 100 days until the midterm elections last week, with leaders saying they will focus on healthcare cuts, in addition to the cost of living and the war in Iran. Democrats and independents continue to overwhelmingly disapprove of Trump's handling of healthcare. Midterm cycles historically favor the party out of power when the incumbent president's approval is underwater, and Trump's sagging economic numbers give Democrats a tangible opening to press affordability and healthcare as defining issues.

This story was originally featured on Fortune.com.