As ties with Mexico fray, Kushner works quietly to mend them

Next week, during a visit to Mexico by the secretary of homeland security, Kirstjen Nielsen, the two countries are expected to introduce the first two of about two dozen agreements that are the fruits of Mr. Kushner’s personal diplomacy with Mexico’s foreign minister, Luis Videgaray.

The agreements — one that creates joint inspections to stop the flow of drugs and other contraband across the border; another that uses technology to speed up the inspections of legal cargo — are much less visible than either the wall or the disputed provisions in Nafta.

But they show that Mexico and the United States can still work together. White House officials said that in the coming weeks, they would announce more agreements on energy cooperation, infrastructure and economic development in Central American countries, aiming at stemming the flow of migrants, through Mexico, into the United States.