One official described a collective feeling of accomplishment after that announcement, in part because Harris knows that fostering stability in the region will hinge not just on government assistance, but also partnerships with multilateral organizations and the private sector — as well as getting buy-in on the strategy from governments in the region.

“It is so easy to view the immigration issue as merely a political one — where the US dictates and people follow — but she views it very differently,” said Jeff Tsai, who was one of Harris’ closest advisers when he worked as special assistant attorney general of California between 2013 and 2015. “She approaches this as a two-way, mutual conversation, because the solution is mutual.”

A hands-on approach to policy-making

Confronting those challenges, Harris is doing what she’s always done in the face of a difficult task. She’s doing her homework.

Trained as a prosecutor who immersed herself in the fine details of her cases, Harris has sought detailed explanations from aides and experts in closed-door briefings and roundtable discussions to tease out underlying problems in Mexico and the Northern Triangle countries of Guatemala, Honduras and El Salvador.

For those who have worked with her, those probing exchanges are indicative of the hands-on way the vice president has long approached complex policy issues — from her days as San Francisco district attorney, to attorney general of California, to US senator.

Former aides describe Harris as meticulous and thorough when engaged on the issues she cares about most. When it comes to criminal justice and immigration, several noted how she often insists on shifting the conversation beyond the symptoms of a problem, toward understanding the root causes and how to address them at their source, with a particular focus on the people who would be most impacted by her own policy decisions.

“She is very much someone who wants to understand things from a human-centered perspective,” said Sergio Gonzales, the executive director of the Immigration Hub and former senior policy adviser to Harris when she was a senator.

Gonzales recalled that Harris would push staff to consider the impact of policy on recipients of the Obama-era Deferred Action for Childhood Arrivals program, which shields undocumented immigrants who came to the US as children from deportation. “How much is a filing fee?” and “What’s their average income,” would be frequent questions from the then-senator.

Those who have observed her in recent weeks say that she appears to be applying that same approach to devising policy for stemming the flow of migration from Central America, a problem that has confounded administrations for years.

Building on her past experience with the region

One of the first trips she took as attorney general of California was to Calexico to tour a drug smuggling tunnel along the California-Mexico border. In 2014, she led a bipartisan delegation of state attorneys general to Mexico, striking an agreement with leaders there to enhance information-sharing on the activities of transnational gangs and participate in joint training sessions on money laundering.

While trying to forge collaborations with those partners, she was “obsessed” with ensuring they understood that she was talking “with them,” and “not to them,” said Tsai.

He noted that the strategy was central to building trust with her counterparts in a region as they tried to deal with a politically fraught issue: “It doesn’t take that much imagination to see a scenario where trust could, at a moment’s notice, break down. The wrong word is uttered, the wrong type of concept is conveyed, and all of a sudden, what was otherwise a tenuous trust issue has now broken down into a no trust issue,” Tsai said. “So that’s a tightrope, not unlike the tightrope, that now Vice President Harris is being asked to walk.”

Harris also believed that one of her greatest strengths as attorney general was the “power to convene” — the ability to summon people with disparate interests into one room to solve a problem when she had limited government resources to spare. She used that approach in 2014 when she dialed up the managing partners at some of the biggest law firms in the country asking them to send representatives to a meeting at her office so she and her team could help pair them up with immigrant advocacy groups to expand the legal representation of the unaccompanied minors from Central America who were streaming across the border.

One former adviser recalled how she persuaded the lawyers assembled in her office to commit to a certain number of hours of pro bono work by walking them through the harrowing experience those children had coming across the border alone — which she had learned about firsthand during visits with advocacy groups — and then laid out “the very stark differences in outcome for those children who have representation and those who don’t.”

A fraught assignment

A key challenge in addressing those issues will be navigating the governments of Guatemala, Honduras and El Salvador, all of which face varying governance issues.

Harris has publicly called out El Salvador, singling out the Parliament that recently dismissed the attorney general and top judges as undermining its nation’s highest court, but she’s not yet called the leaders of El Salvador and Honduras.

The vice president will land in Guatemala on Sunday and has a day full of events in the country the next day, including an in-person bilateral meeting with President Alejandro Giammattei. Harris will then fly to Mexico where she’ll participate in a bilateral meeting with Mexican President Andrés Manuel López Obrador.

Harris is also expected to meet with community leaders, innovators and entrepreneurs in both countries, underscoring the Biden administration’s emphasis on collaborating with international organizations in the region.

While she has spent the past few weeks trying to get up to speed quickly on a broad array of issues, she acknowledged last week that she hadn’t had as much time as she would have liked to brush up on her Spanish before the trip.

“One of my regrets is that I’m not fluent in Spanish,” she said. “I will have my conversations in English so as not to embarrass myself.”