The D.E.A. announced “a major new initiative” with Mexico to fight cartels. President Claudia Sheinbaum of Mexico said that was news to her.

A panel of federal appellate judges rules Tuesday that New Mexico’s seven-day waiting period on gun purchases likely infringes on citizens’ Second Amendment rights, putting the law on hold pending a legal challenge.

Boxer Julio César Chávez Jr. has been deported to Mexico following his arrest in the U.S. for overstaying his visa and lying on a green card application.

Noem announced Tuesday that the U.S.-Mexico border wall is being painted black in an attempt to make it more difficult for migrants to climb.