As President Donald Trump pressures Mexico to address the flow of migrants and drugs heading north into the United States, the Supreme Court is set to hear arguments Tuesday in a major appeal about one thing that’s crossing the border toward Mexico: guns.

The U.S. Supreme Court will decide if Mexico can sue U.S. gunmakers for damages. Most of the justices, liberal and conservative, sounded skeptical of Mexico's lawsuit.

Attorneys for the gun industry argued that, under Mexico's theory, Budweiser would be liable for every accident caused by an underage drinker.