Vice President Kamala Harris has been tasked with demanding that Central American countries strengthen their borders and blocking immigrants who come to the southern border of the United States. “The Vice President agreed … to lead our diplomatic effort and work with those nations to accept returnees, and enhanced migration enforcement at their borders,” President Joe Biden said in a press conference on Wednesday. “We’re already talking to Mexico about that.” Harris will be working with “the countries that need help in stemming the movement of so many folks, stemming the migration to our southern border,” Biden said. After the new measures were announced, Harris she said she was looking forward to the negotiations with the Central American countries. “I look forward to engaging in diplomacy with government, with private sector, with civil society and the leaders of each in El Salvador, Guatemala, and Honduras, to strengthen democracy and the rule of …