WASHINGTON (AP) — More Americans disapprove than approve of how President Joe Biden is handling the sharply increasing number of unaccompanied migrant children arriving at the U.S.-Mexico border, and approval of his efforts on larger immigration policy falls short of other top issues — suggesting it could be a weak point for the new administration.

A new poll by The Associated Press-NORC Center for Public Affairs Research also shows that solving the problem of young people at the border is among Americans' highest immigration priorities: 59% say providing safe treatment of unaccompanied children when they are apprehended should be a high priority, and 65% say the same about reuniting families separated at the border.

Former President Donald Trump built his presidency around hard-line policies that expanded and fortified border walls, made it tougher for people fleeing drug violence and other desperate circumstances in Mexico and Central America to seek U.S. asylum and separated immigrant families.

Biden has tried to seize political momentum on the issue by promising a more humane and orderly system, but his administration has struggled to cope with rising numbers of migrants coming to the border, especially unaccompanied children.

Overall, 40% of Americans disapprove of Biden’s handling of children reaching the nation's southern border without their parents, compared with just 24% who approve. Thirty-five percent don't have an opinion either way.

“I don’t know how to politically correctly say this: I do feel that, because there’s this new administration, that people feel that they can come to the country,” said Mindy Kiehl, a 40-year-old real estate agent in Erie, Pennsylvania, who otherwise approves of Biden's handling of the presidency so far.

“I get it. They’re seeking refuge," Kiehl added. "But bringing these children, it’s not good for the children, it’s not good for the families. I don’t know how that’s going to solve the problem.”

Biden said at a recent news conference that “we’re sending back the vast majority of the families that are coming.” But his struggles on the issue go beyond unaccompanied minors.

Just 42% of Americans say they approve of how the president is handling immigration in general, and a similar share, 44%, say they approve of how he’s handling border security. Both are significantly lower than the 61% of Americans who say they approve of how Biden is handling his job overall and fall short of the president's rating on some other issues, including his response to the coronavirus pandemic and managing of the economy.

That gap comes despite the White House endorsing the most ambitious overhaul of the nation's immigration system in a generation on Biden's first day in office. It has stalled in Congress, though, and Republicans and even some top Democrats say passage will be difficult.

The plan would provide an eight-year path to citizenship for the estimated 11 million people in the U.S. illegally, but the poll shows doing so isn't high on the public's priority list. Only 29% of Americans overall, including 42% of Democrats and 14% of Republicans, called legal status for people in the country illegally a high priority.

Additionally, only a third of Americans each say that allowing refugees to come to the U.S. or expanding “guest worker” programs should be high priorities.

The gap between Biden’s overall approval rating and his handling of immigration crosses party lines. Seventy-four percent of Democrats and 10% of Republicans approve of Biden’s handling of immigration, compared with 96% of Democrats and 22% of Republicans who approve overall.

The difference also comes across racial and ethnic groups. Overall, 92% of Black Americans, 67% of Hispanics and 52% of white Americans say they approve of how Biden is handling his job. On immigration, 74% of Black Americans but only 50% of Hispanics and 34% of white Americans say they approve.

Jack Henes, a retiree in Sebastian, Florida, said Biden hasn’t handled immigration as well as some other hot-button issues while calling what's happening on the U.S. southern border an “administrative nightmare.”

While awaiting the larger legislative package, the Democratic-controlled House has passed smaller-scale reforms that face uncertain futures in a Senate split 50-50. Biden also has used executive actions to attempt to roll back many Trump administration immigration policies but has been criticized for failing to do enough fast enough.

Others feel he's already gone too far.

“My concern is that President Biden has allowed the world to feel it's OK to just come on in,” said Matthew Behrs, a Trump supporter in Wisconsin.

The poll shows many Americans rank some of the major goals of the Democratic proposal as moderate priorities instead of high ones, suggesting Biden lacks a clear mandate for how best to proceed on the issue, potentially hurting his leverage with Congress.

And many want to see efforts to step up enforcement be part of the conversation: For 53%, increasing security at the border is a high priority. Some 47% of Americans also say the federal government should make strengthening policies to prevent immigrants from overstaying their visas a high priority.

Fewer, roughly a third, say penalizing companies that hire immigrants living in the U.S. illegally and deporting immigrants living in the U.S. illegally should be high priorities.

The poll also finds Americans are more likely to favor than oppose providing a way for immigrants brought to the U.S. illegally as children to stay legally, 53% to 24%, with 22% saying they are neither in favor nor opposed. Still, just 41% call extending legal protections to so-called Dreamers a high priority. A plan approved by the House but awaiting Senate action seeks to do just that.

Biden has now assigned Vice President Kamala Harris to work with Central American countries to try to address the root causes of illegal immigration. Henes, the retiree, suggested that Biden has given the problem to Harris as a way of buying himself some time — but that it hasn’t helped.

“They’re still in the huddle,” Henes said. “They’re not ready to call a play.”

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The AP-NORC poll of 1,166 adults was conducted March 26-29 using a sample drawn from NORC’s probability-based AmeriSpeak Panel, which is designed to be representative of the U.S. population. The margin of sampling error for all respondents is plus or minus 3.6 percentage points.