The Trump administration wants President Claudia Sheinbaum to arrest a Mexican governor. She is faced with few good options in response.

The two Americans were killed on Sunday when their vehicle crashed while returning from an antidrug operation led by Mexico’s armed forces in the state of Chihuahua.

A surge of weapons is flowing from the U.S. to Mexico. These firearms — sourced from gun shops, shows, websites and apps — are funneled across the border to fuel the country’s most violent crimes.

President Trump wants to strike cartels inside Mexico. In Sinaloa State, a cartel stronghold, some residents said they were willing to entertain U.S. intervention.