President Joe Biden, Mexican President Andrés Manuel López Obrador and Canadian Prime Minister Justin Trudeau sought to downplay their frustrations with one another on migration and trade as they met for the near-annual North American Leaders Summit.

The leaders offered a unified front on Tuesday despite tensions that have put a strain on their relationships even as Biden has made repairing alliances a cornerstone of his foreign policy agenda.

The tensions were front and center when Biden and López Obrador met on Monday, with the Mexican president complaining of "abandonment" and "disdain" for Latin America.

But as they closed Tuesday's summit in Mexico City with a joint news conference, the leaders offered an optimistic outlook.

"We’re true partners the three of us," said Biden, adding that they had "genuine like" for one another. "We share a common vision for the future, grounded on common values."

López Obrador, for his part, thanked Biden for not building "even one meter of wall," a not so subtle dig at Biden's Republican predecessor,  Donald Trump. The warmth during their joint press conference stood in stark contrast to the more brusque exchange a day earlier.

Still, López Obrador prodded Biden to "insist" Congress regularize undocumented Mexican migrants who work in industries where American employers are struggling mightily to find enough workers.

Canada and the U.S. accuse López Obrador of violating a free trade pact by favoring Mexico’s state-owned utility over power plants built by foreign and private investors. Meanwhile, Trudeau and López Obrador are concerned about Biden’s efforts to boost domestic manufacturing, creating concerns that U.S. neighbors could be left behind.

Trudeau emphasized in a one-on-one meeting with Biden the benefits of free trade and warned against Buy America policies that the U.S. administration has promoted, according to the prime minister's office. Nearly 80% of Canada’s exports go to the U.S., so avoiding protectionism remains a priority for Canada.

The key takeaways from the summit revolve around better connections among the three nations and a shared goal of a stronger North America on energy and in particular semiconductors, climate and a pledge to cut methane emissions, an agreement to manage large waves of migrants coming to the region and a more cohesive regional strategy on dealing with future pandemic-related health threats.

In their talks on Monday, López Obrador challenged Biden to improve life across the region, telling him that "you hold the key in your hand."

"This is the moment for us to determine to do away with this abandonment, this disdain, and this forgetfulness for Latin America and the Caribbean," Lopez Obrador said.