In May, more than 144,000 undocumented immigrants crossed the southern border, Customs and Border Protection officials said Wednesday, the highest monthly total in more than a decade. This was the third month in a row that more than 100,000 migrants were detained at the border, with 132,000 arrested while entering the country and 12,000 turning themselves in at ports of entry. There has been a surge of migrants arriving from Guatemala, Honduras, and El Salvador, and in May, most were traveling as family units. President Trump has said that he will impose tariffs on all Mexican goods starting June 10 "until such a time as illegal migrants coming through Mexico, and into our Country, STOP."

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