(CNN) — The Biden administration will announce additional measures at the North American Leaders’ Summit on Tuesday in a desperate bid to stop migrants from crossing to the US southern border.

The latest list of efforts comes at a time of unprecedented movement in the Western Hemisphere and is designed to curb border crossings and make legal migration programs to the United States, Mexico and Canada more accessible, according to a senior American official.

But the success of these measures depends on whether migrants see these options as viable, especially when they are urgently fleeing deteriorating conditions in their home country.

During his presidency, Joe Biden has faced changing migration patterns that pose unique challenges to the administration and have strained federal and local resources. The issue, in turn, has increasingly become a political vulnerability for the administration, drawing heavy criticism from both Republicans and Democrats, and has been a key talking point with southern partners, primarily the Mexico.

Ahead of Tuesday’s summit, administration officials stressed the need for a regional response that shares responsibility for stemming the flow of migrants between hemispheric partners. Tuesday’s announcement reflects this.

The Biden administration is expected to announce a virtual platform that will serve as a one-stop-shop for migrants to find information on the legal pathways they may be eligible for, whether in the United States, Mexico or Canada, and the opening of a new resource center in southern Mexico, said the senior administration official.

“The United States, Mexico and Canada will commit to enabling migrants to access our legal pathways through a single platform,” the senior administration official told CNN.

The virtual portal is in part an acknowledgment of the challenges migrants face trying to identify legal pathways to come to the United States and then navigating the often difficult and arduous process to do so. Instead, people often turn to smugglers, who spread misinformation about US policies, to travel north, a stumbling block for the Biden administration as it tries to discourage immigrants from take this road.

“This is an experiment,” the senior administration official said, citing recently launched programs for certain nationalities wishing to come to the United States.

Work is underway to build the portal and it should be ready in the coming months.

“We are always competing with smugglers, so we think it’s really important to have virtual platforms that are easy to use and easy to get to…but also hubs where people can go and know what they can do trust the people there and get accurate information. information and even being referred based on admissions and interviews,” the official added.

As part of this effort, the United States is also working with Mexico to open physical centers where migrants can obtain information on how to apply for U.S. immigration, similar to the migrant resource center launched in Guatemala. A new center will be established in Tapachula, a town in southern Mexico through which thousands of migrants pass en route to the US-Mexico border.

“We know it’s a transit location, so the center can help people stay where they are and apply from there,” the senior administration official said.

National Security Council coordinator for strategic communications John Kirby said on Monday that migration would be “a major topic of discussion” at this week’s summit.

“There is no doubt that migration will be a major talking point here for the next 24 to 36 hours. It’s clearly on everyone’s mind here in the hemisphere,” Kirby told CNN’s Alisyn Camerota on Monday, citing a recent commitment by Mexico to accept thousands of non-Mexican migrants who cross the border illegally and do not apply to enter the United States..UU.thanks to new programs

Kirby said the leaders will also discuss the root causes of migration, praising Vice President Kamala Harris’ work on the issue and noting that the issue will be a major topic of conversation throughout the trip.

Tuesday’s summit builds on last year’s meeting in Los Angeles, where countries in the Western Hemisphere pledged to uphold the Los Angeles Declaration on Migration and Protection. The summit was a point of contention between the United States and Mexico when President Andrés Manuel López Obrador rejected the meeting due to disagreements over who was invited. Mexican officials attended the summit.

The North American Leaders’ Summit marks the sixth month since that declaration.

“We have a very ambitious agenda and that’s why the United States has had so many commitments on the table from the beginning and we continue to press other countries,” the senior administration official said, emphasizing that the challenge will not be solved overnight. hand overnight.