The lower appellate court ruled that Mexico had “plausibly” claimed that the manufacturers did aid and abet the illegal trafficking of guns “by passing along guns knowing that the purchasers include unlawful buyers, and making design and marketing decisions targeted towards those exact individuals.”

Do U.S. arms manufacturers bear responsibility for the guns fueling cartel violence in Mexico? Mexico is arguing that case before the Supreme Court.

The Supreme Court seemed likely Tuesday to block a $10 billion lawsuit Mexico filed against top firearm manufacturers in the U.S. alleging the companies have fueled cartel gun violence. Both liberal and conservative justices appeared skeptical that the claims could clear hurdles in U.