The decision by voters in Colorado and Washington state to legalize the recreational use of marijuana has left Mexican President-elect Enrique Peña Nieto and his team scrambling to reformulate their anti-drug strategies in light of what one senior aide said was a referendum that “changes the rules of the game.”

 

It is too early to know what Mexico’s response to the successful ballot measures will be, but a top aide said Peña Nieto and members of his incoming administration will discuss the issue with President Obama and congressional leaders in Washington this month.