During Vice President Joe Biden’s one-day visit to Mexico City on Monday, President Felipe Calderón asked that the United States do more to "strengthen actions against the trafficking of weapons into our country and money laundering,” according to a statement from the president's office. More than 60,000 of the weapons used by Mexican cartels have been identified as originating in the United States.

Biden also met with the three presidential candidates participating in Mexico’s July 1 general election to discuss security and cooperation. The frontrunner, Enrique Peña Nieto, said after his meeting that his Partido Revolucionario Institucional (PRI) party is committed to fighting organized crime. "The discussion is not whether we should or shouldn't fight against it, but what we can do to achieve better results, he told reporters. Partido de la Revolución Democrática (PRD) candidate Andrés Manuel López Obrador said later that the U.S.-Mexico bilateral relationship should prioritize development, jobs and welfare to decrease the push of migration. Partido Acción Nacional (PAN) candidate Josefina Vásquez Mota, who is closing in on Peña Nieto’s lead in the polls, said that the candidates in the U.S. and Mexican presidential should avoid the contentious immigration issue in the lead up to their respective elections.

Biden travels to Honduras today to meet with President Porfirio Lobo Sosa, as well as the presidents of El Salvador, Panama, Costa Rica, and Guatemala. Over the past several months, the presidents of these Central American nations—including Guatemala's President Otto Pérez Molina—and Mexico have said they are open to the idea of legalizing drugs as a response to the U.S.’s inability to curb demand. But after Biden said "there is no possibility the Obama-Biden administration will change its policy."