Migrant-Family Separation and the Diverging Normative Force of International Law and Constitutional Law

49 Pages Posted: 12 Feb 2021

See all articles by Kevin L. Cope

Kevin L. Cope

University of Virginia School of Law

Charles Crabtree

Dartmouth College

Date Written: January 28, 2021

Abstract

A growing experimental literature suggests that international law appears to have a larger impact on public opinion than constitutional law. We develop a theory to explain these seemingly counter-intuitive results. First, in studies that explore the impact of constitutional law, respondents may be “unsuccessfully treated.” Second, constitutional law treatments can trigger a backlash effect through defensive processing of information on constitutionality. To test our theory, we simultaneously test the normative effect of international law and law in relation to the policy of separating migrant families at the U.S. border. We fielded nationwide survey experiments in July 2018 and November 2020, asking respondents whether they supported the policy. Consistent with our theory, we find that telling people that the policy is unconstitutional increases support for the policy, but only when the issue was receiving heavy media coverage, and that international law has no comparable effect on public opinion.

Keywords: constitutional law, international law, experiment, immigration

Suggested Citation

Cope, Kevin L. and Crabtree, Charles, Migrant-Family Separation and the Diverging Normative Force of International Law and Constitutional Law (January 28, 2021). Available at SSRN: https://ssrn.com/abstract=3774739 or http://dx.doi.org/10.2139/ssrn.3774739

Kevin L. Cope (Contact Author)

University of Virginia School of Law ( email )

580 Massie Road
WB345
Charlottesville, VA 22903
United States

HOME PAGE: http://www.kevinlcope.com

Charles Crabtree

Dartmouth College ( email )

211 Silsby Hall, 3 Tuck Mall
Hanover, NH 03755
United States

HOME PAGE: http://charlescrabtree.com

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