The Trump administration and the president of El Salvador said Monday that they'd struck a deal allowing the U.S. to ship both detained migrants and imprisoned citizens to the tiny Central American nation,

President Bukele, who labels himself as the "coolest dictator" and a "philosopher king," has built election success and immense popularity on an extreme security policy to combat gang violence in El Salvador, incarcerating large quantities of alleged gang members and securing a massive drop in homicides.