The Mexican president hesitated to congratulate Joe Biden.

Mexico's President Lopez Obrador said he wouldn't congratulate Joe Biden until the U.S. authorities formally certify him as the winner.

Mexico's President Lopez Obrador said he wouldn't congratulate Joe Biden until the U.S. authorities formally certify him as the winner.Obrador said it was too soon to congratulate the former vice president during a news conference in Villa Hermosa, in Tabasco state, Mexico, on November 7, 2020. After a victory in Pennsylvania's battleground state, Biden won the U.S. election and secured more the 270 Electoral College votes needed to ensure the presidency. President Donald Trump has filed lawsuits to challenge the results. The electoral officials across the country say there has been no evidence of significant fraud. Mexico is the United States' topmost trade partner, with over $600 billion of annual two-way commerce. He said that they would wait until all the legal matters have been resolved concerning the U.S. election.

In a tweet, Joaquin Castro, a Democrat from Texas, said that this represents a diplomatic failure by Mexico's Obrador when the incoming Biden administration is looking to usher in a new era of friendship and cooperation with Mexico.