A new federal watchdog report has revealed that during the height of the Biden administration’s border policies, nearly 90 percent of migrants encountered at the southern border were released into the United States through the use of parole authority.

The report, issued by the Government Accountability Office (GAO), details how the Department of Homeland Security under then-Secretary Alejandro Mayorkas dramatically expanded the use of humanitarian parole between early 2021 and January 20, 2025, as part of what critics described as a sweeping catch-and-release strategy.

According to the GAO findings, parole authority had historically been used only sparingly by previous administrations prior to 2021.

The report states that the Biden administration’s broad interpretation of so-called humanitarian parole fundamentally transformed the scale of migrant releases into the country.

“Specifically, our analysis showed that OFO and Border Patrol granted relatively few paroles during fiscal years 2019 and 2020,” the GAO report states:

“During this time period the proportion of southwest border encounters resulting in parole ranged from about 3 percent to 28 percent. The number of paroles granted increased beginning in the summer of 2021 and peaked in December 2022, when 89 percent of encounters resulted in parole. Paroles granted declined substantially after December 2022 and again after January 2025.”

The GAO report also warned that the massive volume of parole releases strained federal immigration enforcement systems to the point that Immigration and Customs Enforcement agents are now struggling to properly track many migrants who were released.

“… without readily accessible information about noncitizens’ parole status, ICE does not have the information it needs to identify and monitor these noncitizens, or to take enforcement action, as appropriate,” the GAO report states.

Although the Biden administration is no longer in office, several officials connected to its immigration policies are reportedly lobbying Democrats to revive similar border strategies if the party regains congressional majorities and wins back the White House in 2028.

Among them is Claire Trickler-McNulty, a former DHS official who served under Biden and also worked during the Obama administration as well as briefly during President Donald Trump’s first term.

Trickler-McNulty recently received favorable coverage in The Seattle Times tied to a new podcast project.

During her time at DHS, she reportedly pushed for a system in which millions of illegal immigrants would simply check in annually with ICE, creating what critics described as a European-style border monitoring system.

Many of those check-ins, according to the proposal, would occur electronically rather than through in-person reporting.

In 2023, former acting ICE Director Tom Homan accused Trickler-McNulty of working within DHS to eliminate detention centers and move large numbers of illegal immigrants into Alternatives to Detention programs instead of keeping them in federal custody.

“Trickler-McNulty is the epitome of an ideological, corrupt bureaucrat,” Homan wrote.

The issue of amnesty for illegal immigrants also remains central to Trickler-McNulty’s broader immigration proposals.

“What I’m proposing is what I’m calling ‘immigration probation,” Trickler-McNulty told The Seattle Times. “That is the ability for an adjudicator — like USCIS (U.S. Citizenship and Immigration Services) or an immigration judge — to place somebody in a two-year program. If they pay taxes, they comply, they report in, they show they’re basically willing to interface with the government, they can ameliorate their immigration violations. That would allow them to move into a lawful status.”