Mexico’s president won’t congratulate Biden until legal challenges resolved

Mexican President Andres Manuel Lopez Obrador said on Saturday he would not congratulate a winner of the U.S. presidential election until legal challenges are concluded, in an apparent bid to avoid friction with Washington during the transition.

Democrat Joe Biden won the election on Saturday after a victory in the battleground state of Pennsylvania put him over the threshold of 270 Electoral College votes.

Mexico is the United States’ top trade partner, with over $600 billion of annual two-way commerce, and the bilateral relationship with its northern neighbor is by far the most . . .