Nixon and Reagan tried closing the border to pressure Mexico – here's what happening
Postdoctoral Fellow Aileen Teague in The Conversation, "If Trump ever follows through on his threat and puts up a closed sign at the southern border, it wouldn’t be the first time. Twice in the last half-century the U.S. has tried to use the border to force Mexico to bend to America’s will. The ruse failed both times."
April 8, 2019 The Conversation