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When President Barack Obama announced his plans to shield millions of immigrants from deportation, Congress and the commentariat pilloried him for acting unilaterally. When President Donald Trump attempted to ban immigration from six predominantly Muslim counties, a different collection ofcritics attacked the action as tyrannical. Beneath this polarized political resistance lies a widely shared belief: that Congress, not the President, makes our immigration policies, dictating who can come to the United States, and who can stay, in a detailed and comprehensive legislative code.InThe President and Immigration Law, Adam Cox and Cristina Rodriguez shatter the myth that Congress controls immigration policy. Drawing on a wide range of sources-rich historical materials, unique data on immigration enforcement, and insider accounts of our nation's massive immigrationbureaucracy-they tell the story of how the President became our immigration policymaker-in-chief over the course of two centuries. From founding-era debates over the Alien and Sedition Acts to Jimmy Carter's intervention during the Mariel boatlift from Cuba, presidential crisis management has playedan important role in this story. Far more foundational, however, has been the ordinary executive obligation to enforce the law. Over time, the power born of that duty has become the central vehicle for making immigration policy in the United States.A pathbreaking account of the President's relationship to Congress, Cox and Rodriguez's analysis helps us better understand how the United States ended up running an enormous shadow immigration system-one in which nearly half of all noncitizens living in America are here in violation of the law. Italso provides a blueprint for reform, one that accepts rather than laments the role the President plays in shaping the national community, while outlining strategies to curb the abuse of law enforcement authority in immigration and beyond.

"Jusionyte explores the sister towns bisected by the border from many angles in this illuminating and poignant exploration of a place and situation that are little discussed yet have significant implications for larger political discourse."—Publishers Weekly, STARRED Review Emergency responders on the US-Mexico border operate at the edges of two states. They rush patients to hospitals across country lines, tend to the broken bones of migrants who jump over the wall, and put out fires that know no national boundaries. Paramedics and firefighters on both sides of the border are tasked with saving lives and preventing disasters in the harsh terrain at the center of divisive national debates. Ieva Jusionyte’s firsthand experience as an emergency responder provides the background for her gripping examination of the politics of injury and rescue in the militarized region surrounding the US-Mexico border. Operating in this area, firefighters and paramedics are torn between their mandate as frontline state actors and their responsibility as professional rescuers, between the limits of law and pull of ethics. From this vantage they witness what unfolds when territorial sovereignty, tactical infrastructure, and the natural environment collide. Jusionyte reveals the binational brotherhood that forms in this crucible to stand in the way of catastrophe. Through beautiful ethnography and a uniquely personal perspective, Threshold provides a new way to understand politicized issues ranging from border security and undocumented migration to public access to healthcare today.