To curb violence and drug trafficking, Mexico needs functioning civilian police forces and court systems, not US military strikes and boots on the ground.

Fully implementing and funding its 2008 constitutional reform of the justice system would reduce impunity, boost public confidence and uphold the basic rule of law.

As a potential U.S. Treasury secretary, Robert Lighthizer has more than trade policy to revolutionize.

Suing U.S. gun makers may be good law and politics, but that won’t fix Mexico’s police or courts and end its culture of impunity.

Halfway through his term, President Andres Manuel Lopez Obrador is moving from bending democratic norms and laws to breaking them—a slide that the U.S. cannot afford to ignore.