Vartelas v. Holder
{'<entity_0>': 'Supreme Court of the United States', '<entity_1>': 'Vartelas v. Holder'}
[['Vartelas v. Holder', 'court', 'Supreme Court of the United States']]
<entity_1>, 566 U.S. 257 (2012), was a <entity_0> case in which the Court held that the enforcement of a provision of the Illegal Immigration Reform and Immigrant Responsibility Act of 1996 was applied retroactively to Panagis Vartelas and was thus unconstitutional.
['legal case']