After Summit Snub, Biden Meets With Mexican President

WASHINGTON — One month after snubbing President Biden by refusing to attend a summit meant to show American leadership, President Andrés Manuel López Obrador of Mexico joined Mr. Biden at the White House on Tuesday to shore up a relationship the United States needs to slow mass migration and bolster economic ties.

The notability of Mr. López Obrador’s mere presence alongside Mr. Biden underscored how awkward an already complex…