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

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.